Average die life for US quarters?
Back in 1973-194 era, the average die life for 52100 steel dies for US quarters was reported as in the 250-300K range (reverse die life > obverse die life). I am not aware of a US mint source that lists average US quarter die life for more recent production runs. However, for comparison purposes, the average die life of a dime was about 125-207K in the 1973-1974 52100 steel era, and now the average die life is reported as "a dime die strikes only about 275,000 dimes") (https://www.usmint.gov/learn/production-process/die-making) I'm sure things have changed, and like the dime, the US quarter average die life maybe a bit higher - I doubt that the die life is significantly less than 300,000 now.
Can you point me to a more recent average die life source for US Quarters?
I ask because of the apparent mintages of the Maya Angelou and Sally Ride quarters from San Francisco are about 304,000. Coincidence is possible, but the MAQ and SRQ San Francisco mintages, being near 304,000, suggest that perhaps only one die pair was in use at the San Francisco mint for these issues. .....Conjecture without knowing the average die life for US quarter production.
- Ike Group member
- DIVa (Designated Ike Varieties) Project co-lead and attributor