Found by Eddie McLean in the Glasgow area. Unidentified maker but this appears to be a storage heater brick or similar and according to Harley Marshall, storage heater bricks of all descriptions were made at Stein Castlecary on behalf of a multitude of different companies. Production started sometime after 1960. Stein, Castlecary Fireclay Works, Castlecary,…
Thanks to Harry Wilson the mystery of the WD initials on many Stein Bluebell specials is now solved.
The initials WD within an oval surround stands for The Woodall Duckham Construction Company of Brompton Road, London. – source
Once again this is an example of a Scottish brick manufacturer stamping the customers trademark on bricks manufactured especially for them.
1911 Company founded
1920 Private company formed as Woodall-Duckham Vertical Retort and Oven Construction Co. (1920) Ltd.
1948 Incorporated as a public company
1953 Name changed. Woodall-Duckham was a public company which started to be quoted on the London Stock Exchange in April 1953.
01/07/1958 – The Glasgow Herald
1961 Designers and contractors for coal carbonising and coal and oil gasification plants, and ancillary plants for the gas, coking and chemical industries. 2,700 employees.
Note the WD trademark top middle centre of the poster below and compare to the Bluebell special also shown.
1965 – U262/B34 BUSINESS Letter to C.C. Middleton concerning supply of refractory cast blocks from John G. Stein and Co.Ltd., Bonnybridge, Scotland , 1966, and brochure of same firm , 1965, containing another letter to C.C. Middleton , 1966, and printed list , 1966 (1 letter , 1 brochure containing docs.) . Middleton held a post with Woodall Duckham