Miniature crystal set made by F.L.W. Dean, c. 1924

Miniature crystal set made by F.L.W. Dean, c. 1924

In the 1920s Frank L.W. Dean and his brother ran a retail wireless business in Cardiff, South Wales. In their workshop they designed and made a range of miniature radios at a time when most sets were large and sprawling. Though cleverly constructed and well marketed, they were fairly expensive, and few were sold.