Ah....thanks. I don't have the scar either, but know that some folks in my age group do.
I got the smallpox vaccine twice.The first time as an infant,(sometime in and around 1952) although I did not get the scar on my shoulder.The second time was the last year they gave the vaccine in 1971.That one left a very small scar (not in the shape of a circle which is the most common scar)