Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1040217 search inquires.

Selected title: Breast feathers
Explanation: The central feathers seen on numerous eagle designs. Fully struck coins usually command a premium and the breast feathers are usually the highest point of the reverse. (They are the most deeply recessed area of the die, so metal sometimes does not completely fill the breast feather area, usually because of insufficient striking pressure. Incorrectly spaced or lapped dies will also cause 'striking' weakness)

Most popular coin titles

DefinitionSearchesPercentage
Specimen Proof (SP-70 or PF-70) 55295 13.59%
Silver Clad 32236 7.92%
Coin Silver 24329 5.98%
Slabbed Coins 23258 5.71%
BN 22821 5.61%
Encapsulated Coin 21841 5.37%
RB 21284 5.23%
Deep Cameo (DC or DCAM) 18303 4.50%
PF (PF60, PF70) 18013 4.43%
Reeded Edge 17072 4.19%
Ultra Cameo (UCAM) 16937 4.16%
PR (PR60, PR70) 16008 3.93%
Rarity 15995 3.93%
PQ 15834 3.89%
MS (MS60-MS70) 15585 3.83%
Incuse 14896 3.66%
Coin drop 14631 3.59%
High Relief 14520 3.57%
Reverse Cameo 14197 3.49%
Obverse or Face side 13936 3.42%