In the course of developing a database of error half cents, Ive discovered a statistical anomaly for the year 1825. There appear to be far too many error 1825s, and the errors are of types that involve the feeding and ejection mechanisms for the presses. This could result from a number of things. The Mint hadnt coined any half cents for 14 years, and the machinery might have needed to be recalibrated, they might have installed or been testing new equipment, those responsible for culling out the mistakes might have been asleep at the switch, etc.

Does anyone know of a similar high proportion of errors for other series in 1825? Or, does anyone know of any mechanical or personnel issue(s) that might explain my findings? Please email responses to me at halfcent@mac.com. Thanks for any assistance you can provide.