An example of this brick is still to be found however the leaflet depicted below confirms its existence.
Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge, Scotland
Bonnybridge Brand – for general steel use.
Calder L – Manufactured exclusively for use in steelworks ladles.
Calder – A first class Scotch firebrick with superior spalling resistance
Octo – For highest heat duty in the firebrick range – combines slag resistance with good resistance to spalling.
Novo Fifty – These are finding themselves more applications in the severest temperatures zones of modern furnaces.
Novo Sixty – These are finding themselves more applications in the severest temperatures zones of modern furnaces.
Novo – Sillimanite – These are finding themselves more applications in the severest temperatures zones of modern furnaces.
BSF ( Semisilica ) – recommended for reheating furnace roofs and similar applications.
Bonsil Plastic Refractories – growing field of application for monolithic and in situ construction.
Boncrete Refractory Castables – growing field of application for monolithic and in situ construction
BS Refractory Mortars & Cements – For all refractory jointing purposes.
Hepworth Ceramic Holdings plc (GR-Stein Refractories Ltd. parent co) bought the Bonnybridge Silica & Fireclay Co. Ltd in 1972, closed Bonnybridge works in 1973 and closed Chapelhall in 1980. Therefore between 1972 and 1980, GR-Stein Refractories probably continued to manufacture bricks with this trademark for a time.
Found by John Barnard at Fitzroy, Falkland Islands. Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein & Co, Anchor Brickworks, Denny, Stirlingshire. Milnquarter Fireclay & Gannister Works, Bonnybridge, Stirlingshire .
Many thanks to Vladimir Smirnov for highlighting this brick to me which was found in the vicinity of the St. Petersburg Region, Gatchina Region, Russia by a brick collector, Alexander Korolev. It was discovered the stove of a private house. Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein &…
Found by Eddie McLean in the Glasgow area. Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein & Co, Anchor Brickworks, Denny, Stirlingshire. Milnquarter Fireclay & Gannister Works, Bonnybridge, Stirlingshire .
Found by Eddie McLean in the Glasgow area. Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein & Co, Anchor Brickworks, Denny, Stirlingshire. Milnquarter Fireclay & Gannister Works, Bonnybridge, Stirlingshire .
Found by Eddie McLean in the Glasgow area. Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein & Co, Anchor Brickworks, Denny, Stirlingshire. Milnquarter Fireclay & Gannister Works, Bonnybridge, Stirlingshire .
Found by Eddie McLean in the Glasgow area. This is a ‘hanger’ fire brick. The last number is unclear but it looks like a 2 with the ‘bottom’ missing. Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein & Co, Anchor Brickworks, Denny, Stirlingshire. Milnquarter Fireclay & Gannister Works,…
Found by Eddie McLean in the Glasgow area. Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein & Co, Anchor Brickworks, Denny, Stirlingshire. Milnquarter Fireclay & Gannister Works, Bonnybridge, Stirlingshire .
Found by Gary Fritson on the River Tees at Middlesbrough. This example is not in my possession. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder Firebrick Works, Airdrie, Lanarkshire. alt Chapelhall Works, Lanarkshire. Hepworth Ceramic Holdings plc (GR-Stein Refractories Ltd. parent co) bought the Bonnybridge Silica & Fireclay Co. Ltd in 1972, closed Bonnybridge…
Found at the Manuel Brickworks, Whitecross by Ian Suddaby. This example is not in my possession. Ian states – This IVOR kiln hanger brick is damaged but it’s still the best by far I have ever found. I don’t know whether Ivor was a brand name or a company name, once again there’s a lack…
Found and recovered from the John Lysaght Normanby Park Works at Scunthorpe, Lincs by Jim Stevens. Now in the possession of Ian Suddaby. This example is not in my possession. It measures roughly 14″ x 10″ x 6″. Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein & Co,…
