Thank you webbo3, I did check there but it doesn't actually look or feel like sterling silver, so it possibly wouldn't be marked as such. I think it's quite an old wee spoon.
Wow! So the 3rd mark is the signature Gilbert on two levels, and they used the cross on the triangle mark also. I had no idea these hallmarks were so detailed. I was looking at German marks in case the G didn't stand for Glasgow, which it probably doesn't as John Gilbert was based in Birmingham.
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