Glass Plate Game came out of the effort of several people to
develop rules for the Glass Bead Game as alluded to in Hermann
Hesse's book Magister Ludi. The Glass Plate Game was first
constructed as a table top display, glued to a piece of cardboard
and placed in a shallow wood box, covered by a glass plate,
hence the name. A chess set was used for pieces. Also some
of the symbols were photographs without ideas attached.