These cabinets were made by Catalin Ltd. at Waltham Abbey, Hertfordshire, Essex, UK.
Different companies used these to house various electronics.
These included the "Lesdix De-Luxe" Crystal radio set and the "Lesdix" motor control by Electradix Radios of Battersea, UK.
A single tube "Mini-Twin" radio kit also used this cabinet,
but it is usually found as a speaker from an intercom system.
The system had a control center with a larger catalin cabinet
and multi-colored catalin speaker extensions like this.