This example was found on the site of the old Bonnyside Brickworks, Bonnybridge.

SDR – The ‘D’ within a diamond motif stands for Dyson Refractories.

These Dyson bricks were made at the East Works at Bonnybridge (Dougall/Dyson site).

James Dougall & Sons Ltd, Bonnybridge, Stirlingshire

Alternative brickworks include:

  • Bonnyside Brickworks, Bonnybridge, Stirlingshire.

Below – The same stamp but on a very slight variation. Found at the same location.



Similar articles