Quintet in F (Exchange Puzzle IPP 31)
Pavel's Puzzle Blog: International Puzzle Party (IPP) Archives
2017 Puzzle Design Competition Entries
IPP21 Burr, Exchange Puzzle from Mr. Puzzle, Brian Young
IPP38 Puzzle Exchange in San Diego, California, USA - 11th Aug 2018
Puzzle Auction - IPP Puzzles
IPP wooden Burr 14 piece by Brian Young – New2Play
The original B Lock By Boaz Feldman – New2Play
FantasTIC - IPP Design Competition entry – Wood Wonders
5 IPP Puzzles Packing and Poly shapes Lot 2
5 IPP Exchange Puzzle, 2000-2002
Andreas Röver - Puzzles
The Pentagon Tiles. IPP 32 Packing Puzzle by Marcel Gillen Design by René Dawir | eBay
5 IPP Puzzles plus one more Lot 8
8 x IPP 39 exchange puzzles
Oak Wood High Difficulty Puzzles Bitten Biscuits - Etsy
LOT of 4 IPP Puzzles plus one
IPP Martian Diamond | George Sicherman | Mr Puzzle
Puzzle Auction - IPP Puzzles
Circelei IPP26 Exchange Puzzle by Henrik Haak
Puzzle Design Competition Archives | JL Puzzles
Solving the Mystery of the Secret International Puzzle Party - Atlas Obscura
Jerry's Mechanical Puzzle & Brain Teaser Collection: IPP34 - Edward Hordern Puzzle Exchange
2016 Design Competition Results
Solving the Mystery of the Secret International Puzzle Party - Atlas Obscura
LOT of 4 IPP Puzzles plus one
