Calder Coltness

Seen at Mayfield Brickworks Carluke.

Left in situ due to size.

Calder Coltness? What is the connection between Calder and Coltness?

Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.
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Calder Firebrick Works, Airdrie, Lanarkshire.
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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 between 1972 and 1980, GR-Stein Refractories probably continued to manufacture bricks with this trademark for a time.

Calder Coltness

Below – Update May 2022 – This photo was forwarded by J Stephen Burns who saw the photo online – the slabs were being sold in the Glasgow area. It confirms the stamp as ‘Calder Coltness’.

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