Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 938868 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) 54295  13.96%
Silver Clad 31404  8.07%
Coin Silver 23482  6.04%
Slabbed Coins 22330  5.74%
BN 21866  5.62%
Encapsulated Coin 21118  5.43%
RB 20223  5.20%
Deep Cameo (DC or DCAM) 17506  4.50%
PF (PF60, PF70) 17122  4.40%
Reeded Edge 16221  4.17%
Ultra Cameo (UCAM) 16210  4.17%
PQ 14987  3.85%
PR (PR60, PR70) 14834  3.81%
Rarity 14829  3.81%
MS (MS60-MS70) 14821  3.81%
Incuse 13961  3.59%
Coin drop 13713  3.53%
High Relief 13704  3.52%
Reverse Cameo 13256  3.41%
Obverse or Face side 12976  3.34%