Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1035368 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) 55253 13.60%
Silver Clad 32200 7.93%
Coin Silver 24288 5.98%
Slabbed Coins 23206 5.71%
BN 22781 5.61%
Encapsulated Coin 21808 5.37%
RB 21245 5.23%
Deep Cameo (DC or DCAM) 18252 4.49%
PF (PF60, PF70) 17982 4.43%
Reeded Edge 17037 4.19%
Ultra Cameo (UCAM) 16905 4.16%
PR (PR60, PR70) 15971 3.93%
Rarity 15941 3.92%
PQ 15806 3.89%
MS (MS60-MS70) 15547 3.83%
Incuse 14858 3.66%
Coin drop 14582 3.59%
High Relief 14481 3.57%
Reverse Cameo 14159 3.49%
Obverse or Face side 13892 3.42%