Diagnostic Controls & Presets Pivotal 1921 Depression Key Date Trio
Diagnostic Forensic Readings
Forensic Attribution Diagnostic
Real-time metallurgical and die variety cross-examination verified against certified populations.
Technical Breakdown: Physics, Metallurgy & Die Diagnostics
1921-D Denver: 208,000 | 1921-S: 548,000
Combined Trio: 1,002,000 (Series Record Low)
The post-WWI recession of 1920–1921 combined with massive silver reminting operations under the Pittman Act focused mint facilities entirely on Morgan dollars, reducing half dollar production to historically tiny levels.
Net Pure Silver: 0.36169 Troy Ounces (11.25 g)
Sculptor Adolph A. Weinman's full-relief design placed Liberty's head and left hand directly opposite the high-relief breast of the perched eagle on the reverse, causing chronic metal starvation during high-speed striking.
PCGS/NGC MS-65+ Population: < 25 specimens
Because almost no collectors saved half dollars from circulation in 1921, surviving Gem Mint State specimens represent less than 0.004% of original production, driving values past $200,000.
Documented Benchmark Auction Records
Ex-Duckor Collection. Breathtaking luster with exceptional definition on Liberty's left hand fingers and full skirt drapery lines.
Superb Gem specimen featuring blazing cartwheel brilliance across both sides; lowest mintage date in the entire Walking Liberty series.
Pristine Philadelphia strike showing razor-sharp branch leaves and radiating morning sunrise rays with pristine fields.
Frequently Asked Questions
Why are the 1921 Walking Liberty Half Dollars so valuable?
The 1921, 1921-D, and 1921-S half dollars have the lowest mintages in the entire 1916–1947 Walking Liberty series: 246,000 for Philadelphia, 208,000 for Denver, and 548,000 for San Francisco. A severe post-World War I recession drastically curtailed the need for coinage, and virtually none were preserved in uncirculated condition by contemporary collectors.
What is the diagnostic 'Full Left Hand' check on Walking Liberty halves?
Adolph Weinman designed Miss Liberty carrying branches of laurel and oak in her left arm. Because this high-relief area is positioned directly opposite the eagle's breast feathers on the reverse, metal flow often failed to fill the die. An authentic full strike displays distinct separation between the thumb and fingers, as well as distinct veins on the leaves.
Where is the mintmark located on a 1921 Walking Liberty half dollar?
Starting midway through 1917 and continuing until the end of the series in 1947, all branch mintmarks ('D' for Denver or 'S' for San Francisco) are located on the reverse side, on the lower left near the rim beneath the pine branches. (Only 1916 and early 1917 coins carried the mintmark on the obverse).
How can you detect an added mintmark counterfeit on a 1921 half dollar?
Unscrupulous counterfeiters often take a common Philadelphia 1921 half dollar and solder or emboss a fake 'D' or 'S' mintmark onto the reverse. Under a 20x stereo microscope, look for tooling marks, discoloration, glue seams, or incorrect font shapes compared to authentic genuine mintmarks.
What does a circulated 1921 Walking Liberty half dollar typically look like?
Most surviving 1921 halves are found in heavily circulated grades ranging from About Good-3 to Fine-12. In these grades, Miss Liberty's head and torso are worn flat into silhouette, the skirt lines are faint or missing, but the 1921 date on the obverse and the mintmark on the reverse remain legible.
What is the exact silver weight and purity of a 1921 Walking Liberty half dollar?
The coin is struck in standard US 90% silver and 10% copper. It weighs exactly 12.50 grams (192.9 grains), measures 30.6 millimeters in diameter, and contains 0.36169 troy ounces of pure silver.
How did the Pittman Act of 1918 affect the mintage of 1921 half dollars?
The Pittman Act required the US Mint to melt over 270 million silver dollars to sell silver bullion to Great Britain during WWI, with the mandate to replace them as soon as possible. By 1921, the Philadelphia, Denver, and San Francisco mints were running 24-hour shifts stamping over 100 million new 1921 Morgan and Peace silver dollars, leaving minimal press capacity for half dollars.