What US Mint was the O mint mark from?

New Orleans
Mint Marks

Mint BranchMint MarkYears Mark Used
New Orleans (LA)O1838-1861, 1879-1909
Philadelphia (PA)P1942-45, 1979-Present
San Francisco (CA)S1854-1955, 1968-Present
West Point (NY)W1984-Present

What mint does not have a mint mark?

the Philadelphia mint
Although the Philadelphia mint has been operating continuously since 1793, most Philadelphia coins do not have a mintmark)

Which is the Mint with no mint mark?

While the Bombay mint had the dot mint mark in its issues , the Calcutta mint issues were identified by having no mint marks. Obverse of one of the first issues under the Standard Coinage , showing the East India Company Standard/emblem. Reverse of the coin as above, showing no mint mark. This coin was issued by the Calcutta mint for circulation.

Where do you find the mint mark on a coin?

On United States coins, the U.S. Mint has used none, one, or two letters to indicate the mint facility that produced the coin. The location of the mint mark will vary depending upon the type of coin.

Where does the P mint mark go on a five cent coin?

This changed in 1942. When nickel was removed from five-cent coins during World War II, the “P” mint mark first appeared on coins produced in Philadelphia. The mark’s position also moved from the right of Monticello to above the dome to indicate the new metal composition.

When did San Francisco Mint stop putting mint marks on coins?

Mint marks were placed on the reverse of coins until 1968 when they moved to the obverse. The San Francisco Mint made circulating coins with the “S” mint mark from 1854 to 1955. After that, they produced “S” circulating coins from:

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