Glass label giving subject's instructions for 'Discrimination of Weights. [Test] B' and 15 wooden containers filled with differing amounts of lead shot and inscribed 1-15. No maker marked. Glass label giving subject's instructions for 'Discrimination of Weights
Twenty one wooden cylinders painted black and lined with different amounts of lead, possibly used for weight perception tests, maker unknown. Twenty one wooden cylinders painted black and lined with different amounts of lead
