Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 940614 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) 54306  13.95%
Silver Clad 31419  8.07%
Coin Silver 23498  6.03%
Slabbed Coins 22346  5.74%
BN 21884  5.62%
Encapsulated Coin 21131  5.43%
RB 20237  5.20%
Deep Cameo (DC or DCAM) 17523  4.50%
PF (PF60, PF70) 17135  4.40%
Reeded Edge 16236  4.17%
Ultra Cameo (UCAM) 16219  4.16%
PQ 15000  3.85%
Rarity 14846  3.81%
PR (PR60, PR70) 14842  3.81%
MS (MS60-MS70) 14831  3.81%
Incuse 13978  3.59%
Coin drop 13729  3.53%
High Relief 13719  3.52%
Reverse Cameo 13270  3.41%
Obverse or Face side 12990  3.34%