Quote Originally Posted by BoldHighlander View Post
I have seen this spelling from time to time in books or on the internet.
I wonder when "sgian dubh" became the more common/accepted spelling that is used now?
Good question. Having a quick look through a half dozen or so books on my desk the transformation from "skean dhu" to "sgian duhb" seems to have gradually built up steam starting c. 1950 with sgian dubh as the preferred form coming in to general usage in the late seventies/early eighties. But really, my opinion this is only barely more than a haphazard guess.