![](https://coimages.sciencemuseumgroup.org.uk/795/large_thumbnail_1996_0271_0009__0002_.jpg)
Sleight Non-Verbal Test material
- Made:
- London
- maker:
- G G Harrap and Company
Sleight Non-Verbal Test material, comprises: 1 manual of directions and 5 test booklets, developed by G.F. Sleight, published by George G. Harrap and Co., Ltd., London and Edinburgh, n.d.