Title
American siren called 'Whistle'
Caption
Secret device developed by Bell Labs and called "Whistle". This is the largest and most powerful air-raid siren ever built.
Here, "Whistle" is mounted on a truck.
World War II
Date
20th century
Credit line
Photo12/Collection Bernard Crochet
Reference
CRO18A00_188
License type
Rights managed
Available size
122,0Mb (4,3Mb) / 23,8in x 19,9in / 7138 x 5974 (300dpi)