• Calder L 40

    Found by Eddie McLean in the Glasgow area. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt

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  • Octo

    Found by Eddie McLean in the Glasgow area. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt

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  • Octo 7774

    Found at Inverkeithing. Octo 7774 – it may be stamped 17774 but I think the ‘1’ is

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  • Calder 3

    Found by Eddie McLean in the Glasgow area. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt

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  • H1X Calder 3

    Found at the Calder Ironworks, Coatbridge by Ian Suddaby. Left in situ due to size. Bonnybridge Silica

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  • 8 Calder

    Found at the site of the Calder Ironworks, Coatbridge. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • 1909 Calder

    Found by Ian Suddaby at the old Calder Iron Works site, Coatbridge. This example is not in my possession.

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  • Calder

    Found Manuel Works, Whitecross by Gordon Wyle. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Atlas Coatbridge

    Found in the Ayrchire / Lanarkshire area by John (Ian) Jones, Ayrshire. Calder Fireclay Co., Coatbridge. Telephone,

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  • Calder B

    Found by Robert Jamieson at the old Broadlie brickworks site in Dalry. Bonnybridge Silica & Fireclay

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  • Calder F

    Found by Robert Jamieson at the old Broadlie brickworks site in Dalry. Note the hint of a thumbprint

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  • Calder E

    Found by Robert Jamieson at the old Broadlie brickworks site in Dalry. Note the thumbprint to top right.

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  • CXL G

    Found Manuel Works, Whitecross by Hazel Wyle. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Calder L

    Found in Bonnybridge Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder Firebrick Works,

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  • Calder

    Found in Falkirk. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder Firebrick Works,

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  • Calder XL 3 – 2 1/2

    Found by Gordon Wyle at the Manuel Works, Whitecross. This example is not in my possession. Bonnybridge

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  • Calder

    Found at Drum Farm,Bonnybridge. This is a feathered brick. Bonnybridge Silica & Fireclay Co Ltd,

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  • Calder S 51

    Found at Drum Farm, High Bonnybridge. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder

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  • Calder L 41

    Found by Eddie McLean in Glasgow. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder Firebrick

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  • Calder 1/2

    Found at the old Ravenscraig Steel Works, Motherwell. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Octo 3 1/2

    Found at the old Ravenscraig Steel Works, Motherwell. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Calder 22

    Found at the old Ravenscraig Steel Works, Motherwell. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Calder 23

    Found at the old Ravenscraig Steel Works, Motherwell. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Octo 41

    Found at the old Ravenscraig Steel Works, Motherwell. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • 1 Calder

    Found Glasgow. Note the finger print to top right. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Calder

    Found in Glasgow. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder Firebrick Works,

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  • – Calder

    Found at Ardeer, Ayrshire Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder Firebrick

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