Piet Hein Soma Cube puzzle in rosewood with provenance from Architect Mogens Lassen

Piet Hein Soma Cube. Puzzle in rosewood. This copy belonged to architect Mogens Lassen and was acquired from his daughter-in-law. It can be seen that the base is different compared to the regular versions. Invented by the Danish polymath Piet Hein in 1933 during a lecture on quantum mechanics by Werner Heisenberg. Construction: The puzzle consists of seven irregular pieces made of smaller unit cubes. They can be assembled into a total cube of 3×3×3 in over 240 different ways. The base measures 9.5 x 9.5 cm. and the puzzle measures 8.0 x 8.0 cm. Excellent condition with some signs of a little wear.