File:Variationskreisel.jpg

Summary

Description
Deutsch: Variationskreisel nach Musil. Dieser Kreisel dient demselben Zweck wie der bekannte Kreisel nach Marbe
Date
Source Spindler & Hoyer. 1908. Apparate für psychologische Untersuchungen. Preisliste XXI. Göttingen (Collection Jirí Hoskovec)
Author Spindler & Hoyer

Licensing

Public domain

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Category:CC-PD-Mark Category:Color effects Category:PD-old missing SDC copyright status Category:PD Old Category:Toys