Yeh well its pretty hard to tell :/ As far as i know we haven't used any of the tanks mentioned. Austrian Tank history goes pretty much like this : T-34/85, M24, M26, M47, M60, Leo 2A4. Wiki says that we had 56 Charioteers, but i can't find any records of which battalion had and use them. We got a pretty cool austrian armor history book laying around here and there is no mention of it either. Weird.
But i also found these not far away : These where behind the hangar we park our leopards in. Haven't noticed them for the past 4 month
Also there is a BMP-2 in the woods, upside down, and something that appears to me like a M43 chassis. But it was in the middle of a super muddy field so i didn't went close. Gotta check it out when the ground dries a bit