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Full of Tetrominoes

Schagt, Ad van der (NL)

H2O Puzzel

Griffioen, Sjaak (NED)

HCP (3+1/2)

Obsivac Vaclav (CZ)

No Image

Rubik's Clock

C. Wiggs and J.Tayler

houten bijen en bloemen puzzel

Paddestoel

Pete's Pike

The fantastic world of optical illusions

Seckel, Al (USA)

Making working wooden locks

IQ puzzle Arrow

Sun flower

Deventer, Oskar van (NL)

Hoppers Jr.

Eureka Spectacles

Schagt, Ad van der (NL)

Doolhof Boek

3 Sticks

Toulouzas, Michael

Dual Rhombic Pyramid

Toulouzas, Michael