Copy of page showing electro-magnet, 1928

black-and -white negative

PHOTOGRAPHS - NITRATE NEGATIVES
Rosenfeld and Sons
USA, NY, New York
May 02, 1928
nitrate negative
overall: 5 x 7 in.

5x7 nitrate negative photographed by Rosenfeld and Sons, May 2, 1928. Image of copy of photo of a page from SCIENTIFIC AMERICAN of use of electro-magnets. CREDIT LINE: Mystic Seaport, Rosenfeld Collection. Typewritten neg. sleeve info: "A T & T CO. (American Telephone & Telegraph Co.) 195 Bdway (Broadway) City. Miss F.J. Weber, Room 536. Copy of page from book at studio." Box 2041

1984.187.27764F

Mystic Seaport, Rosenfeld Collection