Historic Framed Print, Government discovers method to preserve film., 17-7/8" x 21-7/8"

Beautiful historic reproduction print from the Library of Congress collections.

Created 1938 July 8 Gift; Harris & Ewing, Inc. 1955. General information about the Harris & Ewing Collection is available at Government discovers method to preserve film. (2) Expansion and contraction, like paper and other sheet materials made from cellulose, films expand as they take up moisture and contract as they lose it, and the extent of the change is different in the two directions of them. This may cause some distortion of the image, and therefore is of particular importance where the image must be true to scale, such as in aerial photography. C.O. Pope is shown with a type of expansiveity tester used and which was designed by the Bureau of Standards. Long strips of film are suspended under constant tension in the [cabinet?] in which the humidity is varied by means of [...] solutions. The change in length is indicated [...continuously?] on a scale by means of an optical-level arrangement, 7/8/38 Glass negatives.

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[Unique Vintage Prints] Historical maps, photos and prints as home decor artworks. Tasteful reproductions restored from the archives at the Library of Congress.
[Satisfied Customers] Snapshots of the Past, founded in 2001, was the first company to offer Library of Congress images as museum-quality, fine-art reproduction prints. Prominent buyers include over 200 bookstores and other retailers as well as tens of thousands of Internet customers. Snapshots of the Past was selected as a vendor for the White House redecoration project of 2008.
[American Memory] A great revolution in the history of poster prints was the development of printing techniques that allowed for inexpensive, mass production. Notably, lithography, was invented in 1796. In 1989 a Library of Congress pilot project aptly titled American Memory laid the foundation for the National Digital Library Program which began in 1995. This program works to digitize selected collections of the Library that emphasize the complex history of an American cultural heritage.
[Museum Quality] Reproduction prints are created using some of the most respected brands of fine art and archival paper in the industry. Prints made with archival paper and pigmented inks can be enjoyed for a lifetime and passed down for generations to come.
[Great Gifts] Wouldn't it be a conversation starter to display an old Halloween, Mother's or Valentine's Day poster? Or one of the earliest aerial views of Manhattan, Boston, Chicago or San Francisco? Posters in the retro style add an air of elegance to your home, study or workplace. And they make great gifts.