Vintage mohair & tin wind-up Circus Animals...1930's??

Found these at an Estate sale in the summer of 2010. For their age, I think they are pretty good. 2 of the 3 still have their key, but I am sure the key is universal. The camel is missing some fur on its hump, other wise all 3 of these toys are intact. I have not wound them, as I am afraid to. I usually don't collect toys, but these look great on display in the bedroom. I am guessing they are mohair and tin, from Germany or Japan, and from the 1930's. Any addition help would be appreciated. I paid $30.00 for all three. Cant find a category for these.......