Cyanotype Postcard, 1909
Cyanotype is a photographic printing process that produces a cyan-blue print. Used to produce copies of drawings including blueprints, the process was also used in the early 20th century to create picture postcards.
Find this item and more at I. U. Tripp & Co., a general store with roots as far back as the 1830s on Main Street, Oak Hill, New York. We are located about three hours north of Manhattan, half-way between Hudson and Albany, and just a stone's throw from Windham.