Both licensed and unlicensed production of the Kalashnikov weapons abroad were almost exclusively of the AKM variant, partially due to the much easier production of the stamped receiver. This model is the most commonly encountered, having been produced in much greater quantities. All rifles based on the Kalashnikov design are frequently referred to as AK-47s in the West, although this is only correct when applied to rifles based on the original three receiver types.  In most former Eastern Bloc countries, the weapon is known simply as the "Kalashnikov" or "AK". The differences between the milled and stamped receivers includes the use of rivets rather than welds on the stamped receiver, as well as the placement of a small dimple above the magazine well for stabilization of the magazine.
and 2 cm Flak Crew Manual - WW2 Era Issue
Handbuch für Den Flakartilleristen (Der Kanonier) , Handbook for the Flak Artillery Crew (The Cannonier). Dated 1941, 8th Improved Edition. Paperback, 67 pages. This manual is a translation of parts of the 1941 Handbook for the Flak Artillery. The only sections contained herein are the basics for each gun, and the detailed descriptions of the tasks for each crewmember during setup and firing. It does not contain the artillery geometry, theory, communication, or aircraft recognition sections of the original 204 page manual.
Please reference "Flak Crew" on your order.
$17 – includes . first class postage.
Cover Contents Page 19 Page 59