FIRST PARTIAL REPORT ON 28/20 MM A/T GUN.

(Used) Aberdeen Proving Ground: Foreign Material Branch, Proof Dept. December 15, 1942. Softcover. File copy from 1942 on German Gerlich reducing bore Gun,13 pages plus 21 pictures plus pullout drawing of the 42/28mm and 28/20 cartridge cases and projectiles. Very Good. Item #13677

Price: $75.00