New-York Historical Society

Category Archives: Conservation

The Preservation of 18th Century Parchment

This post was written by Janet Lee, Conservation Assistant  Parchment is a kind of processed animal skin that has been used for centuries as a writing surface. Considered strong and stable, parchments have traditionally been used for important documents. These parchments are late 18th century colonial land grants from the Banyar manuscript collection. Like most […]

Blueprints, Then and Now

Written by Geraldine Granahan, Preservation Assistant for the McKim, Mead & White Architectural Record Collection. Recently the staff of the library and conservation department spent a fun afternoon in our conservation laboratory attending a workshop on the process of making cyanotypes, or as they are more commonly known — blueprints (so called because they contain […]

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This is a blog created by staff members in the library to draw attention to the richness and diversity of our collections.

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