I had a similar experience when I was about five my mother was sending to buy a loaf of bread at the local store. I was just coming home and she threw a $.50 piece down the stairs for the bread. I didn't catch it and it rolled to the edge of the wall and fell through a crack in the floor. For some reason I never forgot about it. About twenty five years later, the house long torn down, I happened to drive by, stopped, went over to approximately where the money fell through the crack. While brushing the dirt around with my hand I found the half-dollar a 1944 liberty. Is it the same one? I don't know for sure but I believe it is. It would be to much of a coincidence.
Like finding your old bike it brought back memories.