Interlocking - Improved Cluster Buster

Improved Cluster Buster (Stewart Coffin)
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Improved Cluster Buster (Tom Lensch)
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Designer:Stewart Coffin
Craftsman:Stewart Coffin (1st)
Tom Lensch (2nd)
Material:Honduras Mahogany (1st)
Canarywood (2nd)

Identical in appearance to the Cluster Buster, the Improved Cluster Buster uses three dissimilar pairs of pieces making it a more difficult puzzle to both disassemble and assemble. There is only one solution with a minor variation. Making it from a single species of wood compounds the difficulty. Stewart made 10 in 1973. Number 49 in his numbering system.
More information in The Puzzling World of Polyhedral Dissections