Editing Quarter (United States coin) (section)

===Collecting silver Washington quarters===
The "silver series" of Washington quarters spans from 1932 to 1964; during many years in the series it will appear that certain mints did not mint Washington quarters for that year. No known examples of quarters were made in 1933, [[San Francisco Mint|San Francisco]] abstained in 1934 and 1949, and stopped after 1955, until it resumed in 1968 by way of making proofs. [[Denver Mint|Denver]] did not make quarters in 1938. Proof examples from 1936 to 1942 and 1950 to 1967 were struck at the [[Philadelphia Mint]]; in 1968, proof production was shifted to the San Francisco Mint. The current rarities for the Washington quarter "silver series" are:

Branch [[Mint mark|mintmarks]] are D = [[Denver Mint|Denver]], S = [[San Francisco Mint|San Francisco]]. Coins without mintmarks were all made at the main Mint in Philadelphia. This listing is for business strikes, not proofs:

*1932-D
*[[File:United States quarter, obverse, 2004.jpg|thumb|266x266px|this shows the S for San Francisco ]]1932-S
*1934 – with Doubled Die Obverse (DDO)
*1935-D
*1936-D
*1937 – with Doubled Die Obverse (DDO)
*1937-S
*1938-S
*1939-S
*1940-D
*1942-D – with Doubled Die Obverse (DDO)
*1943 – with Doubled Die Obverse (DDO)
*1943-S – with Doubled Die Obverse (DDO)
*1950-D/S Over mintmark (coin is a 1950-D, with underlying S mintmark)
*1950-S/D Over mintmark (coin is a 1950-S, with underlying D mintmark)

The 1940-D, 1936-D and the 1935-D coins, as well as many others in the series, are considerably more valuable than other quarters. This is not due to their mintages, but rather because they are harder to find in high [[Coin grading|grades]] (a situation referred to as "condition rarity"). Many of these coins are worth only melt value in low grades. Other coins in the above list are expensive because of their extremely low mintages, such as the 1932 Denver and San Francisco issues. The overstruck mintmark issues are also scarce and expensive, especially in the higher grades; even so they may not have the same popularity as overdates found in pre-Washington quarter series.

The 1934 Philadelphia strike appears in two versions: one with a light motto [for "In God We Trust"], which is the same as that used on the 1932 strikings, and the other a heavy motto seen after the dies were reworked. Except in the highest grades, the difference in value between the two is minor.

The mint mark on the coin is located on the reverse beneath the wreath on which the eagle is perched, and will either carry the mint mark "D" for the Denver Mint, "S" for the San Francisco Mint, or be blank if minted at the Philadelphia Mint before 1942