Hello! I have a 1971-D Kennedy Half Dollar. I just found out that some of them could be a rare planchet error with 40% silver. Ive done the tissue and ping test. Seems white and have a nice ring to it. It weights 11.59 grams. BUT... the coin has grey/brown colours on the edge? Do all 40%ers have silver edges? Or can the have a "copper" core that shows? Are there any more tests i can do? Best regards!
A 40% silver Kennedy, does not have the copper showing on the edge. If you look at the 40% Kennedy's (1965-1970) they all have a white edge. There must be some new video making the rounds with all of the foreign planchet, and wrong planchet threads recently.
https://photos.app.goo.gl/ovpdsrYKf4aBfm4CA So I was reading the thread and I came across a Kennedy 1971 half dollar. I believe it is not the rare one because I can see the red in it. My question is when held next to a 1972 why is the 1971 so much thicker? I can understand normal wear but it seems like there's more to it for it to be almost twice as thick? Just a curious new collector so any answers are appreciated.
Just a good look at the edge will tell you. Several photo examples before my post. Clad coins are different layers of different metals, one being primarily copper. Think of it as a sandwich. You will see a clear difference and distinct colors. The 40%'ers are also sandwiched but with two different silver compositions. This is seen as two different shades of silver on the edge.
P.S look downthis is a 2 year old thread which was brought back from the dead.The op hasn't been on in over a year the answer has been given previously.
Damn, I keep forgetting to look at the post date. Thx PD. BTY what happed to your old avatar? I thought it was clever.
