Worboys Antiques has dated this piece to the 1930s.
The original enamel dial is marked GPO, and has George VI cypher the case is numbered and dated for 1938. It has an 8 day chain driven fusee movement.

Current Condition
The case and dial are in original condition, the movement has been fully serviced and is guaranteed for 12 months.
Dimensions
38.00cm wide 38.00cm high 16.00cm deep (14.96 inches wide 14.96 inches high 6.30 inches deep)
38.00cm diameter ( 14.96 inches in diameter)
Worboys Antiques has dated this piece to the 1930s.
Established since 1978, dealing in and restoring most antiques, specialising in clocks and furniture.
You can view the stock and full dealer information on the Worboys Antiques Profile Page
Worboys Antiques is a registered member of LAPADA