Nice find,, as the previous psot stated, no oxygen,, covered in mud and chances very cold water kept it from rusting. 76 ? mm shells for cannon,, 7. 62 mm mg 60 rounds /magazines for the Degtyarev machine gun. rate of fire 500 - 600 rpm.,, and it looks like grenades also. During the last part of 45 I beleive that they up gunned the cannon to a higher velocity shell ,, but i cannot verify that the barrel is longer as opposed to a 76 mm . the t 34 /76 had a 76.2mm gun of 41.2 calibres,, muzzle velocity of 2,172 feet per sec. then the next one was a t 34 /85
weight 27 tons, 500 hp diesel, top speed 33mph.