** An outstandingly rare WW2 Confidential military intelligence report, every distributed copy with its own unique security number, this being 'Copy No. 107'.
Very few examples of this classified and security-numbered report have survived. Because of the report's extreme rarity, few collectors know these documents exist; only a tiny handful actually owns one.
WW2 CONFIDENTIAL report Copy No 107: Brief Report on the Supersonic Wind Tunnel in Kochel (Group 2)
BIOS Intelligence Report. Interrogation Report 93. British Intelligence Objectives Sub-Committee (BIOS). January 1946.
** A report by Dr. Rudolf Hermann on the range of problems and development of the supersonic wind tunnel at Kochel.
Duplicated typewritten report in English, 10 x 7.5 inches, 25 x 19 cms. 8 pages.
Very good in original stapled card wrappers. Protected in a modern clear archival jacket.
A nice 8-page synopsis of the developmental stages of the supersonic wind tunnel and its forerunners from their inception in 1934 and establishment at Peenemunde through to its eventual location at Kochel prior to its removal to the US in 1946.
Dr. Rudolf Hermann was director of the Aerodynamic Institute of the Research Station at Peenemunde from 1937 to 1943. In 1943, he was made director of the supersonic wind tunnel in Kochel.