My first post. I purchased this at an auction, site unseen, and with little info. The small town auction stated "a WW2 dated 90mm cannon shell". I took the bait? I won the auction, $120, good so far....then after the commission was added, shipping and insurance I ended up shelling out $175. Info:immaculate brass cartridge casing marked " 90mm M19 Lot 69-23141 C.B.&Co 1943", the projectile ( I was hoping it would be a correct match to the casing) is strange. The base has " XC and a star", the tracer element still in place has been expended ( ignited). The marking on the rotating band reads" KVS-3-33-56-90mm-AP-T-T33F (E?)7". Internet search shows it is missing the cap?, but I can find no evidence even with a magnifying glass one was ever attached. My other question, what kind of date is "3-33-56"? Your thoughts appreciated.