1860 O Seated Half Dollar Strike Though Error

@twohawks: Please do not confound the presses of 1860 with experimental semi-automatic presses of 1885 and in full production in 1890, together with automatics weighting balances.

In that year each planchet was put manually by the presser. How works: the presser put the planchet, action with the foot the hammer which strike and on return of the hammer the anvil higher and the new coin was remove and placed the new planchet during the retract of the anvil. This was in that time the striking.

The norm was for 30K coin by press by day shift and Denver has 10 presses. Every thing was manually.

OK TWO, is no theory which could be apply. It is what was, and no more then. I come trough many apparently feasible theories. No one keep the road at the end.

You has to understand, I do not deny you error coin. It is, has more then one generation past, so it is a legal and legitim error. I try to explain what was and not more then this. In the same time I wrote for members to know how work on that time the Mint. I can show also photos for or the Mint reports, but I do not think it is necessary. If I miss something tell me, I will be happy to know and to wrote right in the next book about the Mint History. Thanks.

the single 43-d bronze cent is double struck like a proof coin and almost certainly intentionally made.

despite there being conflicting accounts of its origin one thing is consistent...the fact that it was manufactured intentionally.

from PCGS:

Ron Guth:
Only a single example is known of the 1943-D Bronze Cent. The story of this unique Cent is shrouded in mystery and speculation.

Here's what John Wexler and Kevin Flynn had to say about this coin in "The Authoritative Reference On Lincoln Cents, Second Edition" (2009):

"The 1943D Bronze cent was owned by a former Denver Mint employee who is believed to have struck it. This coin has the strongest strike of any 1943 bronze cent. Speculation has it that the person hand fed a bronze planchet into the coining press, struck it twice to bring up the design, then kept it. There are zinc fragments on both the obverse and the reverse, which means that the dies were used to strike normal 1943 zinc-coated steel cents first. The coin was kept secret for years. After the person died, the coin was given to one of his children, who in 1996, consigned the coin to Superior Galleries to be auctioned. The coin was examined by ANACS in 1979 and declared "genuine." In 1996, it was sent to NGC, where it received a grade of MS64BN. It has since been certified by PCGS as MS64BN. This coin recently sold for $212,750, the second highest price ever paid for a Lincoln Cent."

In a conflicting story, Dr. Sol Taylor wrote the following in "Making Cents" (September 20, 2008):

"Finally one specimen of the 1943-D cent is known in bronze. This specimen traces its origins to a deliberately made coin probably by John R. Sinnock, chief engraver of the US Mint at the time - as it was later discovered in the estate of a woman Sinnock was dating in the 1940s, when both lived in the small town of North Tonawanda, N.Y."

That cracks me up.

Good use of the two coin holder option. Some more info for those interested in requesting this service:

https://www.PCGS.com/news/new-from-...n-one-holder

Excellent. I like those double slabs.