What's the date on the medallion? edit to add Never mind, looks like they just use 1789 I was wondering it it was a third party repack and...
The papers you reference are referring to dislocations in a crystal. This is very very small. These lines are very very large and all travel in...
Based on the number of posts about hidden faces along with random letters scatter about the coin posted on the net I think many people do their...
Saying new design is logical. Bags of dollar coins were often held in bank vaults for years. This would allow future people to quickly sort out...
Strange I thought it was the 200th birthday of Lincoln
Is this one of the folders made by J.K. Post? A book I have says that Whitman Publishing acquired the rights to make their coin holder folders...
Plated coin. Using either Silver nitrate or Zn + NaOH I plated many cents and handed them out at my old job Here's one I just threw some silver...
Poor coin dealers. Probably a good idea to keep a tray of 75 philly coins and a proof set out to convince the incoming hoard that they do not...
I just checked the 1972 washington quarter at the start of this thread and...
If you look at bidding history for many of these listings after a few weeks you will often see this....
According to a book I have the zincs were struck at 31 tons per sq inch down from 41 for the copper based ones.
They could also be setup coins from when the press was being adjusted
Looking up the listing I see nine people dodged a bullet and canceled their bids during the auction. Four or five lined up to jump off the cliff
I'll be a cynic. It was made to look like a US bullion coin, but it's not It says .999 fine. 1 troy oz would be 31 grams. It's under weight at...
Cant be an acid. Zinc is much more reactive. In fact if you can use acid to make a hollow copper shell with a penny. Acids will just ignore...
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