Fantastic find! Original Polish manufactured, Soviet era, D-44 Divisional guns. These are a modernized version of the Russian D-44. Most were made in the 1950's and modernized durring the 1960's -80's. These guns saw wide spread use by Communist forces in the Vietnam conflict and are still in use there today. Originally, the D-44 is a derivative of the main gun used on WWII Soviet T-34-85 tank. Several varieties and variants available. We also have a few extremely rare D-44MN variants. The D-44MN are equiped with early infared equipment for night combat operations. The D-44MN will come with IR/night vision sets & are sold as a package (example pictured) P.O.R. 

Russian D-44M Divisional Gun