Found Newmains, Morningside, North Lanarkshire.
Unidentified brick, however, the find location suggests Scottish origins but …
The brickmarks of all 4 bricks appeared on the side of the brick.
This W W is a very similar brick and was found nearby
This brick could simply be a product of the North East of England from the Cleveland County.
A further long shot is that this brick is something to do with Cleeves Western Valleys Anthracite Collieries Limited, Wales which one would assumed made bricks although I cannot confirm this – and the spelling needs some explaining if this is the case!
Amalgamated Anthracite Holdings (AAH) originates back to 1892 when Cleeves Company was formed in Wales, owning about 7,000 acres of land. It merged with two other local companies, Gurnos and Gellveeidrim, to form Amalgamated Anthracite Collieries Limited.)
07/11/2020 – The following firebricks were used to build a bungalow in Cleveland c. 1958 and were salvaged from a British Steel site. The manufacturer is unknown.