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Nob's L puzzle 1992 Design Nob Yoshigahara copy produced by Ton Delsing 12 pieces plastic red, backside is white box 85x85x15 mm back |
Moeren Puzzel 1984 © Wil Strijbos 14 pieces plastic (4 nuts each) booklet: 35 problems from Wil Strijbos, Richard Hess and Ton Delsing (producer) back |
De Breinbreker 1980 (book:" Spelletjes" page 41, Jack Botermans, Pieter van Delft en Rob van den Dobbelsteen copy produced by Ton Delsing 7 x plastic silver, 4 problem cards back |