1921 Standing Liberty Quarter. MS-66 FH (PCGS). Bright, brilliant and beautiful surfaces also sport needle sharp striking detail throughout the design. With a mintage of 1,916,000 pieces, the 1921 has long been regarded as a key date issue in the Standing Liberty quarter series. Attractive Mint State survivors in any grade are challenging to acquire. Only 5% of the mintage has Full Head definition (per J.H. Cline, 2007), and the opportunity to acquire a sharply struck Gem usually comes along only once in a very long while. The present coin represents an important opportunity for advanced Standing Liberty quarter collectors.