These old-fashioned bent metal puzzles are fun challenge for spacial awareness, and a good way to keep fiddly fingers busy. They are especially fun for kids (and adults) who are feel the pride of accomplishment when they find a solution to previously baffling conundrum - first the puzzle is impossible, then all of a sudden it's not. But pay attention, solving these puzzles on accident, is more frustrating than not solving them at all!
Anonymous donation to the CGS collection