I have included this page for interest sake.
In May 2021 I visited Geoff Hancock in the Sandford, Strathaven, Lanarkshire area.
Geoff showed me a number of Ballachulish slates that were removed from the steading roof of his old farmhouse.
These slates were stamped ‘Registered trade mark. Ballachulish Slate Quarries Co Ltd. Argyllshire’ alongside a castle keep or tower design. (Note – SBH – ‘Argyllshire is unreadable on this slate).
I believe Ballachulish Slate Quarries Co Ltd was incorporated in 1893 so the stamp is dated from then. The company was wound up in 1907 ish.
In Jan 1908, a new company was set up called ‘Ballachulish Slate Quarries Ltd’ (No reference to ‘Co’). So I would reckon these slates are dated between 1893 and 1908.
It is said that only 1 in every 10,000 slates were stamped thus.
Below – A similar slate where ‘Argyllshire’ is readable. This is in the possession of Northlan Heritage and was removed from the roof of Colzium House, Kilsyth.
