IPP Martian Diamond | George Sicherman | Mr Puzzle
Jerry's Mechanical Puzzle & Brain Teaser Collection: IPP34 - Edward Hordern Puzzle Exchange
LOT of 4 IPP Puzzles plus one
The Pentagon Tiles. IPP 32 Packing Puzzle by Marcel Gillen Design by René Dawir | eBay
IPP 29 Puzzle Lot - Revised
Solving the Mystery of the Secret International Puzzle Party - Atlas Obscura
5 IPP Puzzles Packing and Poly shapes Lot 2
IPP wooden Burr 14 piece by Brian Young – New2Play
2016 Design Competition Results
The original B Lock By Boaz Feldman – New2Play
Oak Wood High Difficulty Puzzles Bitten Biscuits - Etsy
IPP21 Burr, Exchange Puzzle from Mr. Puzzle, Brian Young
2017 Puzzle Design Competition Entries
Puzzle Auction - IPP Puzzles
Andreas Röver - Puzzles
Jerry's Mechanical Puzzle & Brain Teaser Collection: IPP33 Exchange Puzzles
Plus! Puzzle! Burr Puzzle Edi Nagata IPP 30 Exchange Puzzle 🧩 | eBay
Brian's Damn Puzzle Blog: 2012 New York Puzzle Party (Part 6)
Very difficult 3 piece packing puzzle | IPP | Mr Puzzle
Pavel's Puzzle Blog: International Puzzle Party (IPP) Archives
Puzzle Auction - IPP Puzzles
LOT of 4 IPP Puzzles plus one
IPP anti Slide puzzle | Very unusual goal | Mr Puzzle
