Luckenbooth markings help!

I’ve has this pendant for many years and had forgotten about it. It’s a Luckenbooth pendant. I can’t really make out the markings and wondering if anyone could help please?

Your pendant has an Edinburgh sterling silver hallmark. The date letter is really difficult to make out in your picture; I suspect it may be the B of 1976. It certainly comes from the series which started with A in 1975. You can see illustrations of the whole series here.

The maker’s mark, SG in a shield, is that of a company called Sutherland Gemcutters of Lochinver, Sutherland.