Hell, ive seen this post a whil
I have a 1964 three pence silver. The error i believe would be the missing eyebrows. Also got a 1965 but havent really paid attention to look at the scarcity of it. I have been gathering british coin for three years now. The rarest ive acquired was set in a picture frame i got from an estate sale with a 1 pound note. Please contact me if it meets your interest in these collections i have of britania coinery