"Schutzengraben-Geduldspeil"


"Zoologischer-Garten"

Richter Company, Germany, early 1900's.
(both puzzles cardboard box 3.1" x 3.1" x 1/2", 15 stone pieces, and problem sheet)

These two puzzles are the same except for the included direction sheet. The Anchor Puzzle Book describes the 1915 Trench Puzzle as made for World War I soldiers, and the 1916 Zoo Puzzle as a "neutral" puzzle made in Switzerland.