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<p>[QUOTE=&quot;Greg C, post: 26591, member: 334&quot;]Hello, I am currently working on identifying and displaying antique psychology instruments for the psychology department at my university, I have difficulties figuring out what exctaly this instrument was used for. It appears to be from the 1930&#039;s - 1950&#039;s, but I could be wrong. On the aluminim drum that is attached to the motor there is paper taped on with a start word followed by multiple 3 letter non-sense words. This could have perhaps been for study in language or recognition of non-sense words, but the motor is no longer operational, and to perform a full rotation, to move the drum to the next word takes some time. Here are some photos I took of it, it is made by Ralph Gerbrands Co. and the model is M1A, any informtation of possible leads would be much appreciated![/QUOTE]</p><p><br /></p>

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