Silica

Found by Eddie McLean in Glasgow

Find location would suggest Scottish origins but….

The 2 most likely Scottish makers are

Bonnybridge Silica and Fireclay Co Ltd, Bonnybridge

and the

Eglinton Silica Brick Co. Ltd, Dundyvan, Coatbridge

However I have discovered this reference which is also a possibility however I am sure many companies will have stamped their bricks silica.

1951 – OUGHTIBRIDGE SILICA FIREBRICK CO. LTD., OUGHTIBRIDGE, NR. SHEFFlELD. T.A., “Silica, Phone, Oughtibridge”. T.N., Oughtibridge 40804. Established 1856; Incorporated 1918.
Silica bricks and cement; Serpex (magnesium silicate) bricks; magnesite cement ; silica, magnesite, chrome-magnesite, chrome bricks and cements; parging cements; ground ganister; etc.
Trade Names: Silica; S.P. Silica; Serpex.
Managing Director: S . Brooke.

Below –  this similar mark was found in Fife by JC.  Note the thumb print to top right.

 

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