Old puzzle. Copy produced by puzzle design Ton Delsing.9 cardboard pieces. The puzzle was patented in 1911, This variation on Thurston's puzzle was used as an advertisement for soap. The idea was to arrange the cards so that each center circle contained four different colors and each half circle contained two.
Copy produced by puzzle design Ton Delsing.F. D. The world famous Initials. Frank Delano Roosevelt's Initials.Registered U.S. Patent Office.The F consisted of 5 red pieces, the D of 6 blue pieces.Material. Thin Plastic.
This puzzle is a copy produced by puzzle design Ton Delsing.Slide the numbers into order. Start: remove orange center piece .Green pieces are immovable. Material MDF.The letters are covered with transparent foil. You can slide without damage.
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