Description:Electro Medical Supplies Diathermy Apparatus and Accessories catalogue, published in 1949. There is an introduction by Dr Elkin P. Cumberbatch. There are two loose leaf sheets within the booklet: a price list from 1949 and a price list from another booklet. This sort of medical equipment was used at the NHS physiotherapy treatment centre based at the Royal Pump Rooms in the second half of the 20th century.