Full set of Lowenfeld mosaics ('Standard Box'), consisting of 456 tiles in five different geometric shapes and six primary colours, in a green case with sliding lid labeled 'Lowenfeld Mosaic Test'. Made in U.K, c.1960-1975. Plastic tiles; compare 2009-20, which is an earlier model.

Seen at the top is a boxed set of Lowenfeld Mosaics. It consists of plastic tiles in five different geometric shapes and six primary colours. It is a later version of the sets first designed in the 1930s by psychologist Margaret Lowenfeld (1890-1973). Lowenfeld was a paediatrician who became a pioneer of child psychology and psychotherapy. She recognised language is often unsatisfactory and even impossible as an expressive medium for children. She also recognised play is essential to their development. She developed non-verbal techniques to enable often traumatised children to convey experiences.

Her mosaics were a powerful diagnostic and therapeutic instrument. They did not affiliate with any flag or country. This meant they could be used internationally or with individuals whose English was not their first language. The mosaic set was supplied by Badger Tests Company Limited.