Perfected manual of performance skill. (Machine-translation by Google Translate, not legally binding)

摘要

Manual game of perfected skill, essentially characterized in that on the surface of a laminar piece there are constituted a plurality of tabarquillos in the determination of a labyrinth of corridors or passages communicated with each other so that one or several bodies slide between them. Corridors or passages can be properly driven by the player following a follow-up order with the primary purpose of introducing them into the corresponding depressions formed on said surface and in whose immediacy there is represented a graphic or figure alluding to a specific cultural theme of natural sciences in the achievement of a purpose both instructive and mere entertainment of the game. (Machine-translation by Google Translate, not legally binding)