Check out this extremely rare Superman puzzle set from Saalfield that ended on eBay earlier today. Released in 1940, it’s some of the very earliest Superman merchandise. I try to avoid talk about specific monetary value on here, but I think the buyer got a bargain at $161.38. I doubt I’ll see another for a while.
Hake’s Americana sold a Superman 6-puzzle set in 2007 for $1150, though that set had twice the puzzles and is in significantly better condition.