The natural lakes down here sometimes go dry when the water table recedes and a sinkhole forms. When that happens things that've been sunk on the bottom for years dry out. When the lakes return, things float up.

I've found most of my antique wooden decoys when the water comes back and the old decoys float up. Most have been Victor or Animal Trap products and in pretty poor shape. The ones in my decoy rig have been re-headed and painted over. No value, I'm sure but dear to me...Geo