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Sir GrantsAlot's Blog

16 Aug 2017

half dollar proofs

| Sir GrantsAlot

I noticed that the 1968 proof half dollars aren't frosted. I found some 1987 proof halfs  but they were frosted. They seemed to have silver halfs not frosted
and copper-nickel halfs frosted. A very interesting thing about halfs is that 1971 halfs have a ring round the middle only if they are perfect. In order to detect
weak strikes are by looking at the shield on the eagle. Beware of silver(1794-1970) and not released for circulation! (1987, 2002-today)

Comments

Kepi

Level 6

I have never found a proof in my searching coins.

user_7180

Level 5

The mint has made great strides to stike mirror and frosted coins.

The Paginator

Level 3

I think what Sir GrantsAlot is talking about is the halo effect seen on many earlier Kennedy Half Dollars but very prevalent on the 1971 coin. I found a picture of one on the web here: http://images.davidlawrence.com/productimagesCDN/306xxx/306057_o.jpg I've noticed that myself and find it unusual. I can't think of any other coins that exhibit this. Also, I don't think he meant "beware" but rather "be aware" of the fact that half dollars between 1794 and 1970 have silver in them. Thanks for your post Sir GrantsAlot

Conan Barbarian

Level 5

i have yet to find a proof coin in circulation but i do have a bunch of proof sets

Mike

Level 7

They use acid on the dies and lasers. This gives the cameo effect. They are also hit a couple of times with two tons of pressure. This combined with everything they use gives the ultra cameo effect on the American the beautiful quarters and other coins cents nickels proof coins . All to give the field a beautiful reflective look. They are not dumped into bins but handled individually..Mike.

Sir GrantsAlot

Level 3

That is quite interesting. I don't usually read much about that

user_9073

Level 5

I suspect that some of the differences that you are noticing is caused by die polishing techniques and technologies. I have read that today's frosted and cameo proofs are created by laser polishing. That technique was not used 20 to 50 years ago. I also suspect that some is marketing hype. If the US Mint wants to sell a lot of sets they hype the surface quality. If the are not trying to sell the sets, the bang the coins out with indifference to the surface quality.

Mike

Level 7

It's called cameo. The first few of the new die would be cameo or ultra cameo. Rick Tomaska wrote a book on these halts. The quarters are made that way. I have no problems with any of my silver I have collections of beautiful silver coins you have to be more specific. You also have to be more specific about the rings. My coins are certified MS 70 perfect and have no rings. Kindly explain or show a picture. Mike..

Sir GrantsAlot

Level 3

I can't find a way to post a picture but the ring is around the head or just look on the internet.

CoinLady

Level 6

Back in the day, only the 1st few strikes were frosted. In recent years, more care is taken so the coins all have the frosted effect.

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