This example was found in Edinburgh and is in the possession of Ian Suddaby.
This is not in my possession.
Unusually for a firebrick, one stretcher face has a rough finish and the other is smooth.
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 Eddie McLean in the Glasgow area. This stamp is likely to have had at least 4 numbers. 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,…
Found by Eddie McLean in the Glenboig area. 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 works in 1973 and closed Chapelhall in 1980. Therefore…
Found by Eddie McLean in the Glasgow area. 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 works in 1973 and closed Chapelhall in 1980. Therefore…
Found by Eddie McLean in the Glasgow area. 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 works in 1973 and closed Chapelhall in 1980. Therefore…
These bricks were found by Gustavo Coronel. Gustavo states – I am communicating with you for the purposes of a new find of CALDER bricks, produced in another of the lime kilns in the City of Malagueño, this is the largest kiln in the entire Province of Córdoba. It is located in Barrio Montevideo and…
Found by Ian Sinclair on Newshot Isle, Inchinnan, Renfrewshire. 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 works in 1973 and closed Chapelhall in 1980….
This brick was found by Gustavo Agustín Coronel. He lives in the City of Malagueño Córdoba, Argentina. Gustavo states (apologies for the quality of the google translation) – I would like to tell you that since last year I have been researching and studying the history of our city, this study was carried out mainly…
This brick is in the possession of Boris Talpa, Rostov on Don, Russia. It was found at an unknown location in Russia. Below – Octo 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…
Found by میرشمس الدین پیراسته فرد (Mir Shams Addin Pirastefard) at Shour Valley Geosite, Qeshm Island, Iran. This brick is now deposited at Qeshm Island UNESCO Global Geopark Museum. 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)…
This was found at an unknown location and is in the possession of David Longson. 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 works in…
