Not sure if anybody has noticed this before, but I haven't seen it mentioned. I just found a printing defect that only appears to be present on the original Han Solo. Interestingly the 70c Han (with longer printed bubble area) does not have it, nor does any other Tri Logo figure as far as I can see having just looked through all my old photos. It appears to be a masking issue, as the left silver strip is present on small figures eg Yoda, looks like they just forgot to mask it off on this particular Han cardback.
Useless but interesting info
Useless but interesting info