| Author |
 Replies: 19 / Views: 3,136 |
Page 2 of 2
|
|
|
|
New Member
 United States
12 Posts |
Neat!! I would have thought the 40%'s would not show the clad layer...?
Thanks for the quick reply... this forum is fantastic!!
|
|
Pillar of the Community
United States
650 Posts |
Three different Kennedy half dollars were minted with the S mint mark in 1976: 1976-S clad proof 1976-S 40% silver BU 1976-S 40% silver proof If this coin is not a proof, then as Sherlock Holmes always said: "Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth." Meaning if it's not a proof then it's the 40% silver clad from an uncirculated mint set that somehow escaped captivity and roamed the circulated wilderness for a while. Precise weighing is about the only way to tell for sure. PS: Most of the 40% silver clad Kennedys do show a little copper on the edge, but I've seen a good percentage that looked all silver too. Edited by batboy
02/22/2017 11:13 am
|
|
Moderator
 United States
189767 Posts |
A nice find, in my opinion.  |
|
Pillar of the Community
United States
3644 Posts |
 with bat edges can be deceiving usually mostly silver but some may show a hint of copper-that said I think it looks like a 40 also |
|
Bedrock of the Community
United States
17884 Posts |
It's not a proof, but I have to agree it doesn't look like a 40% silver coin either. Any chance of doing a tissue test of this coin with both a coppernickel clad and another 40% silver coin? |
|
New Member
United States
12 Posts |
I always thought the tissue test was a joke... but, looks like folks are saying it works. I'll give it a try and will also try to get my hands on a digital scale. |
|
Bedrock of the Community
United States
17884 Posts |
tissue test is no joke. It works because silver is the most reflective of all metals reflecting something like 94% of allthe light that hits it. The clad composition only reflects something like 60%. SO a much greater percentage of the light that passes through the tissue and hits the silver coin comes back through the tissue making it appear much whiter than a clad coin under the tissue. Now if the coins are heavily toned it can cause it to fail but your coin doesn look to have much toning.
|
|
Valued Member
United States
295 Posts |
I don't see a 40% coin--I see toned copper on the edge--I adjusted the OP's picture some. That said, I suspect it's an impaired/circulated proof coin.  |
|
Moderator
United States
56855 Posts |
I do not think it is a proof. Check the bay for photos. There is no sign of a cameo and the rim is not squared off like a proof would be. John1  |
|
Pillar of the Community
United States
3644 Posts |
Still looks like a 40 to me
|
|
Bedrock of the Community
United States
62064 Posts |
It works. You can even do it with coins in the collection books without removing them from the albums.  a single layer of tissue is all you need and a silver coin. This does not work on toned coins. But the normal colored coins it works fine. (not discolored) |
|
Valued Member
United States
295 Posts |
Quote:
I do not think it is a proof. Check the bay for photos Yes--I know what modern unimpaired proofs look like, and I also know how much circulation can knock down the surfaces--and cameo of a proof. But in this case, I think I see the suggestions of cameo left on this coin. Below I've improved the contrast of the photo somewhat--look at the reflective quality of the bust vs. fields. However, I'd need to see the coin in-hand to feel more certain--I think that would clinch it.   Edited by Thulium
02/23/2017 2:21 pm
|
|
New Member
United States
12 Posts |
ok - I did the tissue test... the coin of interest is third from the top (top two are 40%, bottom four are clad)... it appears to be clad:  So, I broke the rules, with a soft cloth, I rubbed the coin a little... sure enough, it was covered with grease...  It is definitely a clad proof!! I didn't rub off all of the grease... I didn't want to scratch the surface. Thanks all for weighing in! Edited by Calvab
02/24/2017 01:28 am
|
|
Moderator
United States
189767 Posts |
An impaired proof is still a nice find.  Thank you for sharing the results. |
|
New Member
United States
12 Posts |
I was really surprised how much the grease/haze made the coin look like a business strike. My Dad took this coin out of circulation in the late 1970's... it couldn't have been in the wild for more than a couple of years. Any chance this could have come from the mint this way? If only coins could talk!
|
|
Page 2 of 2
|
Replies: 19 / Views: 3,136 |
Page 2 of 2
|
First Page
Posted 02/22/2017 11:11 am
