This puzzle is a copy produced by puzzle design Ton DelsingYears ago I received a drawing of this puzzle from Edward Hordern.I couldn't find it anywhere and decided to copy it. 9 + 1 extra number 2 piece horizontally engraved. Material acrylic.The engraved stripes on the puzzle indicate the slots at the bottom.Horizontal, vertical or a cross. All 4 corners in the tray have a pin. A nice and difficult puzzle. Material Acrylic.
Put the 15 numbers in order. Pieces can't fall out because of transparent top plate,More assignments on the back of the puzzle. Material MDF.The numbers are covered with transparent foil. You can slide without damage.The letters are covered with transparent foil. You can slide without damage.
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