Quote Originally Posted by Morris at Heathfield View Post
I finally remember what tartan it reminds me of: Shaw of Tordarroch (the green one).

EDIT: Of course, that's unlikely, as the Shaw of Tordarroch tartans were designed in 1969.
I don't see the similarity: here's the ToM then the Shaw:





The ToM has clear overall similarities with the Clan Donald and that sett might have been the source but it's impossible to know for certain.The Shaw, Red and Htg, were based on the MacKintosh/MacBean tartans.