Reprographic Processes
The production of several copies of a single drawing throughout most of the twentieth century was done through different reprographic processes. Blueprints, diazotypes, and photostats, among many other photoreproduction processes, depend on the use of a variety of light sensitive materials, including papers coated with chemicals such as iron and diazo salts. Some of these reprographic prints were then annotated in pencil and ink, others were rendered over in watercolor, felt tip markers, or colored pencils. The identification of these processes in twentieth century collections is critical for their long-term preservation.
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elevations
plans

Fountain House; 1st floor [Floor Plan, Scale 1:50] (sepia diazotype on lightweight paper; 40″ x 29″)

Fountain House; 2nd Floor [Floor Plan, Scale 1:50] (sepia diazotype on lightweight paper; 25 1/4″ x 23 3/4″)

Country House;Second floor plan [Floor Plan, Scale 1:50] (electrostatic copy on mylar (matte front, gloss back); 18″ x 18″)

Country House; Mezzanine floor plan [Floor Plan, Scale 1:50] (electrostatic copy on mylar (matte front, gloss back); 18″ x 18″)
sections
interior perspectives

Fountain House; [Interior perspective, Signed Silvetti, “VII-75″] (sepia diazotype with pen ink signature on lightweight paper; 29″ x 29”)
Frances Loeb Library
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