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I am trying to create the most up to date list of Scottish Brickmakers and Marks so please send me links or photos of any Scottish bricks or variations that do not appear here so that I can add them to the ever-growing list. Please feel free to suggest amendments or point out errors. Please use the contact form.
All donations of bricks will also be gratefully accepted I will arrange uplift.
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I am also looking for contacts around Scotland with whom I can liaise with regard to locations for picking up bricks and local information.

  • Calder
    — 20/11/2017

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

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  • Calder
    — 29/10/2018

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

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  • Calder
    — 07/01/2020

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

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  • Calder _
    — 18/12/2014

    Found Old Niddrie brickworks, Cleikimin, Edinburgh. The slight variation below has an ‘underscore’.

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  • Calder _
    — 13/11/2015

    Found Dalmellington This brick is crudely tapered. Note the thumb print to top right. Bonnybridge Silica

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  • Calder 1/2
    — 26/07/2017

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

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  • Calder 118
    — 26/03/2021

    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 19S
    — 04/08/2015

    Found by Aimee Surprenant in a house built in 1875  in St. John’s NL, Canada. This example is

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  • Calder 2
    — 27/07/2014

    Found Old Niddrie brickworks, Cleikimin, Edinburgh. This is not in my possession. Note the thumb print.

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  • Calder 2
    — 03/01/2020

    Found by Ian Suddaby at Niddrie, Edinburgh. This example is not in my possession. Bonnybridge Silica

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  • Calder 22
    — 15/05/2017

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

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  • Calder 23
    — 15/05/2017

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

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  • Calder 2825
    — 18/09/2015

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

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  • Calder 3
    — 16/01/2019

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

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  • Calder 3
    — 23/03/2021

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

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  • Calder 6527
    — 25/04/2019

    Found by Tucker Kennedy in Ayrshire. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder

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  • Calder B
    — 20/05/2018

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

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  • Calder BL Crown
    — 17/01/2022

    Photographed by Martin Leedham. These bricks form a brick floor in a small hotel in Bridgetown, Barbados.

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  • Calder British Made
    — 24/07/2014

    Found Old Niddrie brickworks, Cleikimin, Edinburgh See also this example of a Calder British Made brick

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  • Calder British Made
    — 09/02/2015

    This example was found in an old Bakery, Resistencia, Chaco, Argentina by Deigo Maciel. This example

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  • Calder C 12
    — 24/03/2021

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

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  • Calder Coltness
    — 28/01/2015

    Seen at Mayfield Brickworks Carluke. Left in situ due to size. Calder Coltness? What is the connection

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  • Calder E
    — 20/05/2018

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

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  • Calder F
    — 20/05/2018

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

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  • Calder Iron Works
    — 26/07/2017

    Found by Eddie McLean in the Glasgow area. Manufactured at the Calder Iron Brick Works, Coatbridge as

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  • Calder L
    — 25/05/2015

    Found Newmains, North Lanarkshire Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder

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  • Calder L 22
    — 13/01/2016

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

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  • Calder L 25
    — 31/05/2015

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

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  • Calder L 40
    — 10/04/2019

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

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