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The 1934 issue was only struck at the Philadelphia and Denver Mints, so the mint mark would be a "D." The mint mark position is underneath the words "FIVE CENTS" on the back of the coin.
The mint mark on all Lincoln cents, including the 1909 VDB cents, is on the front, just below the date.
The mint mark position on all "Mercury" dimes is next to the E in ONE on the back. No mint mark = Philadelphia S = San Francisco D = Denver
From 1946 to 1964, the mint mark position was at the bottom left of the torch on the back of the coin. No mint mark = Phila. S = San Francisco D = Denver
It would be on the back, beneath the eagle's tail feathers.
It depends on its condition and mint mark:Retail values as of 02/2009:No mint mark:Very worn condition - $10Moderately worn - $14Slightly worn - $18Almost no wear - $25CC mint mark on the back, below the bow:$13 / $25 / $40 / $110S mint mark on the back, below the bow:$12 / $25 / $40 / $43CC mint mark on the back, above the bow:$12 / $17 / $35 / $50S mint mark on the back, above the bow:$14 / $31 / $48 / $58
The mint mark position is on the back, just above the bell's yoke. The letter, if present, will be very small:No mint mark = PhiladelphiaD = DenverS = San Francisco
On the back, to the right of the base of the building. No mint mark = Philadelphia D = Denver S = San Francisco
This would be a Liberty Seated half dollar. The mintmark, if it has one, would be locted on the back below the eagle.
With no mint mark on the back, about $250 in average condition. With a "CC" mint mark, about $3500. If you have a coin with a CC mint mark, it should be authenticated by a dealer or grading agency to ensure that it's not a counterfeit.
All Washington quarters dated 1932 to 1964 had the mint mark on the back under the bow of the wreath. No mint mark = Philadelphia D = Denver S = San Francisco (up to 1954)
The P mint mark was first used on dimes in 1980. All earlier dimes minted in Philadelphia didn't carry a mint mark. Please check your coin again - the mint mark position is next to the E in ONE on the back.