This signifies that the coin was produced by the Denver Mint.
Other mint marks you may find on your pocket change are:
P, or no letter - Philadelphia
S - San Francisco, mostly on proof coins today but on some older cents and nickels
The letter "D" is the mint mark for the US Mint in Denver, Colorado.
3 to10 cents at the most for average coins, uncirculated coins are 50 cents to a dollar
Sorry, no US coins dated 1776 with a Twenty D. denomination were struck. 1793 is the first year for ANY US coin.
In 1964, the US mint was making coins primarily at two sites, Philadelphia and Denver. To distinguish the coins, the Denver coins had a D under the date. The Philadelphia coins had no mint mark.
A mint mark on any coin (not just the United States) indicates where a coin was minted. For modern US coins, P stands for Philadelphia, D is Denver, and S is San Francisco.
The letter "D" is the mint mark for the US Mint in Denver, Colorado.
yourmom
d
The day of the landings
Musical Instrument Digital Interface. D = Digital
There is no widely recognized meaning for the letter "D" in Joseph D Lobster. It could simply be an initial or a placeholder in the name.
The capital letter on each US coin tells you at which mint it was made; P is for the Philadelphia mint, S is for the San Francisco mint, and D is for the Denver mint. See the related question below.
That represents 500.
The only US state that has a D as the second letter is: Idaho
The Greek letter for "D" is Delta, represented by an open equilateral triangle. It signifies change.
Stand
All three of these are small letters on US coins used to identify which mint they were made at. Most commonly D stands for Denver but it could also stand for Dahlonega. Between 1838 and 1861 gold coins were made at this mint. O stands for New Orleans and CC stands for Carson City.