Inventor Laboratory Photo, 1919
Issued by the famous late 19th/early 20th Century photographers Underwood and Underwood. The Underwood and Underwood company was founded in 1881 in Ottawa, Kansas, by two brothers, Elmer Underwood and Bert Elias Underwood They moved to Baltimore and then to New York City in 1891.
c. 1919 Silver gelatin photograph of inventor Thomas Edison working in his New Jersey lab. Stamped on the back by Underwood and Underwood (1920’s).