Title: Transatlantic Radio Telephone Measurement chart, 1923 |
Accession Number: 1984.187.24641
Category: PHOTOGRAPHS - SOFT NEGATIVES
Type: safety negative
Maker: Rosenfeld and Sons
Place: USA, NY, New York
Description: 8X10 safety negative taken by Rosenfeld and Sons on March 4, 1926. Image of AT&T Transatlantic Radio Telephone Measurements Chart. Visible in image: "Transatlantic Radio Telephone Measurements / Diurnal Variation of Percentage of Disconnected Words Understood / Typical Winter Day -1923 / Typical Summer Day~1923", chart with x representing Greenwich Mean Time and Eastern Standard Time and y representing % Disconnected Words Understood. Typed on original negative sleeve: "A T & T Co-195 Bdway, City. / Mr. R W King, Room 536 / Copy of chart at our studio".
Mystic Seaport Image ID m331877 Information regarding reproductions