Baldwin Manufacturing Co. Cannon. 1930s wood and pressed steel.

Very cool depression era cannon that functions a bit like a real artillery piece.

You pull back the lever on the back (which pulls back the spring for firing), you place a round in the tray, push the lever forward which pushes the round into the breach. When ready to fire, you press the big red button! Pull the tray back out and repeat the process all over to bombard your tiny lead enemies. Adjust elevation as necessary with the knob on the side.

This will put one of those little wooden bullets 20' across the room, maybe more if you get the elevation right.

This particular one isn't marked, but they are known to have decals on them. In fact you can see one here:
http://www.liveauctioneers.com/item/2084080