Cutler's Dilemma by Bill Cutler. Not at all easy. Difficult packing puzzle. I needed help. But I love backing puzzles. One day I hope to find the Boxed Box. : r/mechanicalpuzzles
Computer's Choice Unique-10
18 Piece II Burr | Bill Cutler | Mr Puzzle
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Bill Cutler STARK RAVING CUBES Blockhead/Square Fit WIT'S END 1995 PUZZLE GAME | eBay
Mechanical puzzle - Wikiwand
Splitting Headache - yup, it is... - Bill Cutler design