Just thought I’d let my readers know. I track Heye puzzles on ebay daily because there are still 2 rare ones I’m looking for. A bunch of rare Heye puzzles just went up, including “Ave Ceasar” (Loup), “Hotel World” (Prades), and “1001 Nights” (Prades). If you are looking for older Heye puzzles, you might want to check it out. Here’s a link.