D coins come from Denver, Co
The "D" on coins mean that it came from the Denver Mint.
The letter "D" is the mint mark for the US Mint in Denver, Colorado.
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.
It depends on the number of coins made at each Mint.
Philadelphia, coins made before 1980 with no mint mark were struck at that Mint
The 1922-D Peace dollar is a very common coin. Circulated coins are $31.00-$41.00. Typical Mint State coins are $45.00-$52.00.
In the grade of MS-60, the P & D mint coins are $1.27 the S mint are $1.38
1¢ The Denver mint ("D") churned out over a billion of these coins.
Like all coins, the value is based on the date, the condition, the mint mark and the demand for it. There is no one value that can be applied to all coins with a specific mint mark.
D represents the Denver Mint. It's not just limited to quarters or even silver quarters. All coins minted in Denver have a D mint mark.
No they don't, not until 1906
US cents with no mint mark were struck by the Philadelphia Mint, those with a D in the Denver Mint, and with an S in San Francisco. Currently only proof coins are made in San Francisco and coins for general circulation in the other two mints. In 1979, the Susan B. Anthony dollar coin was the first coin to feature the P mint mark for coins minted in Philadelphia. By 1981, all coins, except for the lowly US cent (commonly called a "penny"), had mint marks, even for Philadelphia-minted coins.