Diagnostic Controls & Presets Famous 1917 Key Date Variety • $1,500–$25,000+ Value
Diagnostic Forensic Readings
Forensic Attribution Diagnostic
Real-time metallurgical and die variety cross-examination verified against certified populations.
Technical Breakdown: Physics, Metallurgy & Die Diagnostics
1917 Mintmark Relocation Policy
When the Walking Liberty Half Dollar design by Adolph A. Weinman was introduced in 1916, the branch mintmarks ('D' and 'S') were placed on the obverse directly below the national motto 'IN GOD WE TRUST':
Mint officials felt the obverse mintmark interfered with the artistic balance of Weinman's design. On February 14, 1917, the Mint Director ordered all mintmarks relocated to the lower-left reverse field.
Striking Characteristics & Wear Points
The 1917-D Obverse is notorious for central striking weakness on Liberty's left hand and skirt lines due to metal displacement resistance:
High-grade uncirculated examples exhibiting full, crisp hand details command massive premiums at auction, frequently selling for 3× the value of weakly struck coins.
Documented Benchmark Auction Records
Heritage Auctions Signature Sale. Superb Gem with booming cartwheel luster and exceptionally sharp strike for the obverse mintmark issue.
Stack's Bowers Rarities Auction. Desirable choice uncirculated key variety.
The more common reverse mintmark type, selling for roughly one-third the price of the obverse mintmark issue in identical grade.
Frequently Asked Questions
Why are there two different 1917-D Walking Liberty Half Dollars?
In early 1917, the Denver Mint placed the 'D' mintmark on the front (obverse) beneath 'IN GOD WE TRUST'. Mid-year, the Mint Director ordered all mintmarks moved to the reverse (back), creating two distinct collectible varieties.
Which 1917-D half dollar is rarer?
The 1917-D with the mintmark on the obverse (front) is significantly rarer, with a mintage of only 765,400 compared to 1,940,000 for the reverse mintmark variety.
Does the San Francisco Mint (1917-S) also have Obverse and Reverse varieties?
Yes! The exact same mid-year change occurred at the San Francisco Mint, producing both 1917-S Obverse and 1917-S Reverse half dollars.
How much is a circulated 1917-D Obverse worth?
In Fine (F-12) condition, it is worth around $75 to $90. In Very Fine (VF) it brings $150 to $200, while uncirculated specimens range from $3,000 to over $25,000.
What are the primary counterfeit risks for the 1917-D Obverse?
Counterfeiters frequently take a common 1917 Philadelphia half dollar (which has no mintmark) and glue or solder a fake 'D' mintmark onto the obverse. Authentication under magnification verifies genuine die flowlines.
Why do many 1917-D halves look worn on Liberty's hand even in uncirculated grade?
The design had high relief that prevented metal from flowing completely into the dies during striking, resulting in a 'weak strike' on the hand and skirt lines even on coins that never saw circulation.
How does PCGS label these coins?
PCGS and NGC clearly label them as '1917-D Obv' or '1917-D Rev' directly on the certification holder.