United States. A Type B Air Force B-17 B-24 B-29 Intervalometer Auction surrounding a pebbled void

surrounding a pebbled void

All five badges have glue residue evident on their reverses from previous board mounting

97 mm x 16

a small plaque depicting a plane above a low relief cityscape

consisting of a Stahlhelm on top of a grooved bands

United States. A Type B Air Force B-17 B-24 B-29 Intervalometer Auction surrounding a pebbled voidManufactured by J. P. Seeburh Corp of Chicago, IL, a Control, Bomb Release, Type B otherwise referred to as a intervalometer, used by US Army Air Forces bombardiers on B 17 and B 29 aircraft to control the spacing interval and number of bombs dropped per train to execute precise bombing patterns, measuring 24 cm (l) x 9 cm (h), near very fine.