Gawain WeaverGawain Weaver: Conservation and Consulting Services in the Care of Historic and Fine Art Photographs


The library includes image galleries, links to a few of my favorite photograph conservation/connoisseurship websites, bibliographies, and other useful resources.


 Process ID and Nomenclature

See the Photographic Processes page for more information


Image Galleries




Other Resources

Chromogenic Characterization: A Study of Kodak Color Prints, 1942-2008

Recent research by Gawain Weaver and Zach Long on chromogenic prints ”Chromogenic Characterization: A Study of Kodak Color Prints, 1942-2008” is now available in full, including many color images, on the Notes on Photographs website developed at George Eastman House.

We have submitted an article for publication in Topics in Photographic Preservation 13. A pre-publication version of the Topics article is available for download as PDFs in two parts: Chromogenic Article, Ektacolor Paper Backprint Chronology.   

A Guide to Fiber-Base Gelatin Silver Print Condition and Deterioration, by Gawain Weaver

A 41-page illustrated guide to how and why gelatin silver prints deteriorate, includes a 2-page chart and many diagrams in addition to photographs depicting each of the 15 forms of deterioration. Print publication is planned for 2010. Download Paper [PDF, updated April 2008]


Polaroid Identification Codes: Download PDF

Horvath, David G. (1987). The Acetate Negative Survey Final Report. Louisville, KY: Ekstrom Library Photographic Archives, University of Louisville. (link to the University of Louisville Ekstrom Library PDF is broken so it can be downloaded directly from here for the time being)

The Art & Artistry of the Photographers Mark: Vintage Lithography on Early American Cartes de Visite circa 1860 to 1880



Collections Preservation Grants

Photograph Conservation and Preservation

Photograph Collecting and Connoisseurship

Emergency Preparedness and Disaster Recovery

 Digitization Best Practices

Listservs of Interest

Please read the introductory words about each group before joining, each one has a specific focus