A bit of help please in identification on these leias. I am aware of the 2 variations in the neck but 2 I have with the same neck appear to have a lighter and darker cape. Is this just due to fading in the sun ? They are both 1980 lfl Hong Kong on the left leg. And the other one on the far left has the different neck and head with just 1980 lfl only. Is one rarer than the other any help and rough valuation would be greatly appreciated.