Tryne Games Mfg. Inc., Lindenhurst, NY, copyright 1961.
(cardboard box 5.6 by 9 by 7/8 inch thick, booklet, and 7 plastic pieces;
assembles to a 5.4 inch square by 3/16 inches thick;
the problems in the booklet are similar to the Richter 8 Anchor Puzzle booklet; this puzzle should not be confused with Richter 12 Pythagoras)