Are these rare to find, an what's it probably worth.. theres quite a few pics... the obverse an reverse pics of this Kennedy half dollar show doubling, more so on the reverse
Unfortunately, your coin is not a DDO, DDR or RPM. Your coin is Machine Doubling (MD). Good pictures though. You're looking in the right place! Hey, you got a 40% silver coin there. https://www.ngccoin.com/news/article/5688/Double-Dies-vs-Machine-Doubling/
I would think your coin has Machine Doubling due to the fact that the mintmark also shows the doubling which it should not if it was a true DD coin.
What @Islander80-83 & @alurid said. Consider that the Denver Mint produced just under 247 million of these...those dies got overworked & produced many effects like those. But it's still 40% silver! Prob. worth a few bucks, at least silver melt. Btw, with all those pics, it would have been nice to see the whole coin, obverse & reverse.
Thanks for the comment an sorry bout not posting these earlier... I was busy with my kids, an trying to be quick.. I dont know why its showing 2 of each...