(Carey Orr) OPTICAL TOYS.
Title "ole" Million Face: Changeable Blocks.
Binding Wooden Toy
Book Condition Near Fine
Publisher Putney: Optical Toys, 1998
Seller ID 84348
A facsimile of the 1925 set. Eleven 4-sided wooden blocks with 4,194,304 possible face combiations. The blocks are all in fine condition, the illustrated box is taped at the top corners