Identified, well, sort of. The vault door had a makers sign on the inside surface. It was model 1900 x 900, #268 made by Kassakaappi Oy with the brand name KASO (which later would be their new name). Owner of the place said that it is from the very late 40's or early 50's, even got to talk with a now retired employee of the bank that was there tens of years ago.
The lock itself had no ID, but I suspect it is their own make. Very interesting approach with the fixed "fly" pins, they contact the next wheel from a slot in the wheel. Explains why the reversal of dialing had roughly a 35 number difference, as the slot goes around the whole wheel and stops just before the gate area. Gravity driven fence with a roller on the end, MASSIVE piece of brass. Once the numbers were correct, the cam being the shape of a spiral just turned from my sensitive touch to a solid stop. Was like WTF is going on and then realised it was open.
Door handle turned with a nice clunk sound and when firmly pulled, you could hear air rushing with a very slow "woooosh". Beatiful, just beatiful. The inside mechanism had had two relockers, but the firing mechanism and cables had been removed and the relocker bolts welded in place, probably when the bank closed its operation there. Why, I have no idea, and also why they didn't leave the key to the next owner.
The key lock that had been left open would have been nicely picked, 7 levers, no false gates, individual springs on each lever. The shape & size of the key that was not there looked a bit like Kromer Novum, but the lock itself looks like selfmade, probably done inhouse at the same factory as the door.