Dudd  Missing Notches  Interlocking puzzles by Stewart Coffin STC 129  129A
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Dudd / Missing Notches - Interlocking puzzles by Stewart Coffin (STC #129 / 129-A)

Dudd and Missing Notches are two closely related puzzles by Stewart Coffin Both have the same objective assemble s ...

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Dudd / Missing Notches - Interlocking puzzles by Stewart Coffin (STC #129 / 129-A) alternatives