• Calder XL 23

    Found on the site of the old Bonnyside Brickworks, Bonnybridge. Bonnybridge Silica & Fireclay Co

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  • Novo Resisto 80

    Found by Ian Suddaby in Bonnybridge. This example is not in my possession. Bonnybridge Silica & Fireclay

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  • Octo P

    Found by Ian McLennan in Colinton Dell, Edinburgh. This example is not in my possession. Bonnybridge

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  • Novo Mullite

    Found by Ian Suddaby in Bonnybridge. This example is not in my possession. Bonnybridge Silica & Fireclay

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  • Octo 24

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

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  • Octo D 418

    Found by Ian Suddaby in Bonnybridge. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder

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  • Novo 50 T 15

    Found by Ian Suddaby in Bonnybridge. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder

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  • Octo 3

    Found by Ian Suddaby in Bonnybridge. This example is not in my possession. Bonnybridge Silica & Fireclay

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  • L 10001

    Found on the banks of the Bonny Water, Bonnybridge. Unidentified maker. Find site would suggest Scottish

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  • Bonnybridge 24 R

    Found on the banks of the Bonny Water, Bonnybridge. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Bonnybridge 42

    Found in the Bonny Water, Bonnybridge Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder

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  • Bonnybridge S 25

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

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  • Bonnybridge 30

    Found on Drum Farm, Bonnybridge. Note the thumbprint to the top right. Bonnybridge Silica & Fireclay

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  • Bonny Bridge

    Found on Drum Farm, Bonnybridge. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder Firebrick

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  • Novo 70

    Found on Drum Farm, Bonnybridge. (Note – SBH – This is different to the similar stamp found

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  • Bonnybridge 24 R

    Found on the banks of the Bonny Water, Bonnybridge. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Bonnybridge R 10

    Found on the banks of the Bonny Water, Bonnybridge. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.

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  • Bonnybridge B

    Found in woods once owned by the Bonnybridge Silica & Fireclay Co Ltd near Drum Farm, Bonnybridge.

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  • Novo Seventy

    Found by Ian Suddaby at Grangemouth. Note the lower leg of the second E’ is missing. Bonnybridge

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  • Calder 118

    Found by Eddie McLean in the Glasgow area. This stamp is likely to have had at least 4 numbers. Bonnybridge

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  • Calder C 12

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

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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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  • Octo 42

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

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  • 36 Bonnybridge

    Found by Ian Sinclair on Newshot Isle, Inchinnan, Renfrewshire. Bonnybridge Silica & Fireclay Co

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  • Bonnybridge 2 8 2 1

    This was found at an unknown location and is in the possession of David Longson. Bonnybridge Silica &

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