No longer available (from B Shackman), this nicely made tin toy features a man at a whetstone sharpening a knife.
Simply crank the the red wheel with the offset crank and it all moves - his foot up and down as though he were using that movement to run the stone. And the wheel will turn and the knife gets "sharpened".
These are vintage old stock from the 1970s through the 1990s. The elastic that cranks the stone is stretched on some of the toys and may need to be replaced. They have never been opened or used (New Old Stock).
It needn't be elastic, string should work just as well. We have not touched these toys as we didn't want to open all of the boxes and ruin their original state.
Not for children. Small parts warning.