Today's wait out traffic thrift store score is this hand sized mechanical clockwork tin toy with soldiers and ships?? Then a dial window shows a peek of a tank! The wind no longer winds up. The window won't move and I don't want to damage the paint. The back is wood. It is stamped "Switzerland" on the side. Is it world war 1?! Or post ww1 pre ww11. Or ww11? I can't find anything on my phone and am dying to know if there's a music box inside! Help!