The 1977 quarter is part of the Washington Quarter series, minted from 1932 onwards.
Most 1977 quarters hold face value, but collectors seek high-grade or error coins.
Circulated 1977 quarters are common, but uncirculated coins can fetch higher prices.
Special mint sets or proof coins from 1977 are more valuable to collectors.
Look for errors like double dies or off-center strikes, which increase a coin's value.
Condition is key; grades range from Good (G) to Mint State (MS).
Professional grading services can certify a coin's condition and authenticity.
1977 quarters without a mint mark were minted in Philadelphia.
Quarters with 'D' are from Denver, and 'S' indicates a proof coin from San Francisco.
Check auction sites and coin shops for current market values of 1977 quarters.