I'm listing some of the final pieces in my collection. With the aluminum variants available at a much cheaper price, these puzzles will likely only interest a collector. Up for auction are the following: Dirty Dozen ProductionDirty Dozen PrototypePartition ProductionPartition Prototype All puzzles are in mint condition. The prototypes are identical to the production builds except that the tolerances are a bit looser so the puzzles wobble/wiggle a bit more. However,...