Doesn't look it at the edges and the weight is 11.47 tho? Did I get lucky? Even if not its still a 40%!! Around the edges of the other I can see a distinct pink salmon color, not on this one tho! Also I'm gonna call it a rear lobotomy port on the back of his head, probly grease fill correct?
There is a 65 error however were 65s were struck on the 64 panchlet. Now I waNna scratch it to find out.. Edges of it Only of course
I've seen plenty of 1965 half's where the clad copper color really isn't visible on the edge, especially on the 65' SMS coins.
It looks like a normal silver clad Kennedy to me. Notice on the images where you show the edge? There appears to be a dark strip, almost like it's dirty. A lot of the 40% Kennedy's developed this look. It's the copper and silver alloy that can do that. I've seen a lot like it.
An easy error to make, since the 1965-1967 coins were ALL made in Philly and there were no D or S coins made those years. What did they do at Denver and San Fran for 3 years?
What they did was make millions of half dollars without mintmarks because Philadelphia made ZERO half dollars in those years. 1965 Denver made 63 million 1965 S made 470,000 1966 D made 106 million 1966 S made 284,000 1967 D struck the entire mintage that year 293 million, none struck in San Francisco.
Both Denver and San Fran were striking coins sans mint mark during that time. You can look up mint records to see who was striking what denomination during that time though. Here's an article that details a lot of what was happening https://www.ngccoin.com/news/article/711/ Not entirely true as the SMS 67' half's were all struck in San Francisco