The following Scottish bricks were found by Denis O’Keefe on the south-west coast of Victoria, Australia. The Cumbernauld and Cardowan Patent were both found in the same pile of bricks on the shore. The pile is thought to be discarded ships ballast. . Below – Cardowan Patent – Cardowan Fire Clay Works, Stepps, Glasgow. Cumbernauld…
Found on the Firth of Clyde.
WD with an elongated diamond design between the initials.
Find location would suggest Scottish origins but …
See this link regarding a similar brick found in Australia.
There is a suggestion from Australian brick collectors that this WD brick with the central diamond logo was manufactured in Australia by the Federal Steam and Brickworks, W Woodham but I am a little dubious of this. Hopefully, clarification and confirmation can be found.