Overcoming Obstacles to Preventive Conservation Projects in Italy: With a Case Study of the Savoy Carriage Collection of the Presidency of the Republic

ABSTRACT

Working on preventive conservation in Italy is difficult but not impossible. After small successes and setbacks convincing museums to adopt elements of preventive conservation in the 1990s, the first author (Rossi Doria) was contracted for 15 years to preserve the historic carriages and associated objects of the Presidency of the Republic of Italy. This required patience to overcome or circumvent obstacles such as an inflexible bureaucracy and the absence of any formal recognition of preventive conservation within the educational and contractual systems for heritage conservation. The key factors in his success were the support of the curators, the financial and planning autonomy of the Presidency, and the obvious need for conservation and preservation of these elegant and complex objects. The program began in 2001 with the recovery of the forgotten collection from inappropriate storage in several locations. The entire collection was surveyed and recorded, not only the carriages but also thousands of harnesses, saddles, clothing, fabrics, weapons and memorabilia. Multiple preventive and interventive actions were undertaken, such as pest eradication for all sensitive materials, environmental surveys, and everyday maintenance, as well as complex treatments for the ornate carriages. Analysis by country of published articles on preventive conservation and of IIC membership both confirm that the topic is not as well established in Italy as in many other countries. Some reasons and solutions are proposed.     

Light damage to selected organic materials in display cases: A study of different light sources

The protection of works of art and cultural assets against light-induced aging is vital when planning exhibitions. Newly developed lighting systems render the selection of suitable light sources more difficult, not least in the context of energy–economical systems. This study accordingly examines different lighting systems (fluorescent tubes, halogen lamps, low-voltage metal halide lamps, and LED lamps) in terms of the damage potential they hold for the materials concerned. The changes in color were evaluated using the CIEDE2000 color-difference formula. This study focuses on selected organic materials and shows that changes in color already occur after only a brief exposure time. The color changes induced by the fluorescent tubes were consistently more intense than those induced by the other light sources. The results obtained with the remaining lamps show that the color changes depend more on the material under investigation than on the source used. The changes determined after a relatively short exposure period (five months) vividly demonstrate that exposing sensitive materials to light for longer terms (as is the case during a permanent exhibition) is most definitely a non-viable option.     

Environmental conditions for the safeguarding of collections: Future trends

This paper sets out the role of the International Institute for Conservation of Historic and Artistic Works (IIC) in facilitating the current international debate on the selection of appropriate environmental conditions for collections to optimise their future condition while minimising energy consumption. It looks back 35 years to when Garry Thomson first published The Museum Environment and forward 35 years to demonstrate how IIC can care for the future as well as care for the past. It asks whether we are posing the right questions in this debate, draws attention to leadership in the cultural sector, and suggests that more conservation professionals should aspire to leadership positions directing museums and heritage organisations.     

Experimental and Numerical Analysis of a Novel Display Case Design: Case Study of the Renovated Anne Frank House

ABSTRACT

Many museums are housed in historic buildings, sometimes the building itself is part of the museum collection. Creating a stable environment by providing a nearly constant temperature and relative humidity at correct levels decreases the risk of object degradation. Maintaining this steady indoor environment, however, increases energy consumption and risks to the historic building. Museum display cases offer a solution to the mitigation of risks to which valuable objects may be subjected by providing an extra layer of protection to indoor climate fluctuations. The Anne Frank House is a historic house museum located in Amsterdam. The museum has undergone several renovations in the last years to deal with an increase in the number of visitors to over 1.2 million a year. The original diaries and other documents of Anne Frank are permanently on display in the Anne Frank House. With the recent refurbishment the possibility arose to design a new state-of-the-art display case. This study presents the results of the experimental research related to the design, performed in-situ. The temperature and relative humidity in the new exhibition space and inside the new display cases were monitored to gain insight into the hygrothermal behavior of these controlled environments. A complementary numerical study was performed to investigate effects of dynamic climate control of the exhibition gallery and climate conditions in the display case under various circumstances. Four main conclusions are presented in this paper. The investigated display case design is able to provide a stable relative humidity environment by means of silica gel, while using an active box-in-box climate control system to create stable temperature conditions. The inner case temperature depends on the temperature supplied by the display case air handling unit. Protocols must be in place in case of malfunction or failure of the climate control system of the display case. The air handling unit of the case needs to be shut off to create a passive environment for the objects on display until necessary actions are taken. Exhibition gallery set points can be less stringent when susceptible museum objects are on display in the display case. The environments are separated and provide an opportunity for energy saving set point strategies. The last conclusion drawn is that the numerical study provides valuable insight into imposing dynamic control of set points for temperature and relative humidity in the exhibition gallery and the effect on the display case environment.     

信息共享空间：高校图书馆服务新模式

阐述IC的概念、构建条件和特点,提出将先进的IC经验引入我国高校图书馆发展规划当中,构筑有自身特色的IC服务模式,包括4个方面：以用户需求为主导,构筑多元化IC服务模式;运用网格技术实现资源交互与共享;制定适合馆情发展的IC规划;人才培训是IC成功的关键。     

Extraction of Zinc Corrosion from Beneath a Paint Layer: A Case Study

ABSTRACT

Conservation of an oil painting on a zinc support is a complex challenge that has not been covered in the literature. Oil paint and zinc support rarely form a working combination because of their chemical properties. This article discusses the conservation of an oil painting on a zinc support that was found in extremely bad condition due to harsh environmental conditions it had been exposed to. The object had to be consolidated due to flaking paint and cleaned of surface dirt and support corrosion products. Finally, the object had to be physically strengthened due to the weakness of the support. This process required conservators to combine methods from several different fields of the conservation discipline. Methods employed in the conservation process came less from the literature, due to the lack thereof, and more from the everyday experience of the department and vernacular working practices. The overall methodology of the process has been reconstructed and critically evaluated in the broader field of conservation ethics and the discipline as a whole.     

The Ephemeral,the Essential and the Material in the Conservation of Contemporary Art: Decision-Making for the Conservation of a Work of Art Made with Butterfly Wings

This article presents the intervention process carried out on a work of art created by artist Yolanda Gutiérrez Acosta, using a series of ephemeral materials such as butterfly wings and agave thorns. The work, an installation from 2002, is entitled ‘Efímeras’ (‘Ephemera’) and consists of 12 flowers mounted on acetate sheets and attached to the same with vinyl acetate copolymers and acrylic acid esters (Mowilith®). These flowers are installed on the floor in a bed of dried flowers. The conservation of contemporary art can lead to some previously unimaginable problems for restorers. Current works of art are somewhat material in nature, but they also have a conceptual dimension that is essential for their artistic interpretation. The artist’s participation in the decision-making process prior to the restoration was quite useful. The passage of time, its effect on the work, and the need to understand the possibility of the demise and destruction of the work were implicit as of the onset of its creation, such that, according to the artist, we are forced to reflect upon the possibilities of its future state.     

Gessoes in Portuguese Baroque gilding grounds,part 1: A study of historical documentary sources

The surviving gilded and polychrome altarpieces and sculptures in Portuguese churches, and the historical documents relating to them, offer an opportunity for understanding material and technological choices regarding gesso grounds. This paper focuses on the historical documentary research about gessoes — one aspect of a wider research project which also involved investigation of physical/chemical evidence, and archaeological reconstructions of gilded gesso grounds. Documentary research sheds light on the meaning of the terms used in historical documents, and on artists’ choice of materials and practices, production, and trade patterns of materials. It informs technological investigations and conservation decisions. The paper also stresses the importance of the evidence gained by using the historical and archaeological methodology applied in material culture studies, in which documentary, analytical, and experimental information complement and/or elucidate each other, leading to a comprehensive understanding of this technology.     

Finding Common Ground: The Role of Preventive Conservation in Response to the Expectations of Contemporary Audiences at the National Gallery,London

ABSTRACT

Like many museums and galleries following a prolonged period of austerity, the National Gallery has increased its public, private and corporate activities on an unprecedented scale and embarked on an extensive building programme to develop the site and its heritage-listed building. Together with an expanding loans and exhibitions programme, institutional attention has been drawn towards using the collection and building in ways not done before, both to attract new audiences and to develop new income sources. However, such new and escalating activities have the potential to expose the collection to risks not previously considered and are increasing cumulative exposure to certain environmental factors. A new group, the Preventive Conservation Working Group (PCWG), working at an operational level, has recently been established as a forum for discourse, collaboration and innovation at this time of transformation, and its activities and areas of current focus are presented. The role of this group in safeguarding the collection while helping the institution to respond to the expectations of modern life and the contemporary audience are discussed, as well as some of the other positive benefits resulting from the group's formation.     

Learning to Drive: Developing a Workable Awareness Plan for Monitoring New Technology

Technology is constantly driving forward, and information professionals need to be informed about developments in order to work more effectively, provide new services, understand what users need and want, and to develop professionally. Learning how to monitor these developments in technology is a skill, just like learning to drive. This article provides information about developing a workable awareness plan and provides some suggested sites to monitor and tools to use.     

Environmental conditions for the safeguarding of collections: A background to the current debate on the control of relative humidity and temperature

Conditions of relative humidity (RH) and temperature within museums and buildings holding collections of cultural heritage objects are often maintained around a strictly controlled set point of about 50 ± 5% RH and 20 or 21 ± 2°C to provide safe, stable conditions for hygroscopic artifacts. It has recently been proposed that these ranges should be relaxed to values that are less energy-intensive to maintain while still being safe for the objects in the collection, with the aim of reducing both carbon footprint and energy use. It is also suggested that conditions should be determined by the needs of individual objects and by the local climate of the region, rather than applying overall values across the museum as a whole. This proposal has led to much discussion within the conservation community. The suggested values, a stable humidity within the range 40–60% RH and a stable temperature within the range 16–25°C for most objects, apart from the most vulnerable, are derived from the results of experimental research on the responses of individual materials to particular conditions of RH and temperature, as well as observations of the behaviour of cultural heritage objects in their own environments and on loan. This paper describes briefly the historical and scientific background to the present discussion.     

国内外古籍保护研究议题及其比较

文章对国内外古籍保护文献进行计量分析,从数量、时间、主题和学科领域分布角度呈现研究概况,在此基础上,从文献材料保护与修复、文献保护环境研究、文献保护技术(科技)、文献保护管理四个方向进行分析阐释。研究发现,国内外古籍保护主要研究方向初步成型,研究重点集中于材料和保护技术;考虑到国内外研究基础、研究情境和关联领域等的差异,宜借力图情档领域进行古籍保护学科建设,促进中华文化传承及创造性利用。     

Preventive Conservation on Demand: Developing Tools and Learning Resources for the Next Generation of Collections Professionals

ABSTRACT

The modern learning environment is evolving at a rapid pace. Technology can help developers of preventive conservation tools and learning resources for collections professionals to increase their impact and reach. However, it is crucial to keep the needs of users, and gaps in skills and knowledge at the forefront. This article examines preventive conservation tools and resources developed by the Canadian Conservation Institute (CCI) and ICCROM (International Centre for the Study of the Preservation and Restoration of Cultural Property) over the past 30 years. In light of the results from a recent survey and research in the learning and development field, a set of orientations for future tool development are highlighted; these tools must be: need driven, user centered, emulating everyday experiences, social and informal, concise, mobile friendly, curated and open access.     

Digital Publishing from the Library: A New Core Competency

In the earlier years of the Web, libraries focused on moving services online and building digital collections, but in recent years, libraries have emerged as key players in the world of digital publishing. Librarians possess all of the necessary skills to act as digital publishers; they join the ranks of many others who have discovered the barriers around digital publishing are lower than ever. Library-based digital publishing solutions have matured to a point that the act of digital publishing could—and should—become a new core competency for the library profession. To explore this hypothesis, the researchers offer a working definition of digital publishing and assess the key roles that traditional publishers have historically offered over time. They find that librarians already possess the requisite skills to become digital publishers, and the collaborative culture of the library profession is a strength for this new role. Examples of digital publishing from two libraries at the University of California-Berkeley offer a proof of concept. Services at these libraries include the conceptualization of overall Web site strategies, a content plan that emphasizes distinctive and original material, and special projects that promote digital publishing at the local level, even as they take advantage of campus- or system-level services. Researchers find that offering library-based Web publishing services can reinforce overall information management programs and also advance the status of libraries within their respective host organizations. The comparative ease of digital publishing has opened an opportunity for librarians to follow the user as they use the Web in creative ways.