Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 886350 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) 53392  14.34%
Silver Clad 30656  8.23%
Coin Silver 22668  6.09%
Slabbed Coins 21511  5.78%
BN 20920  5.62%
Encapsulated Coin 20362  5.47%
RB 19316  5.19%
Deep Cameo (DC or DCAM) 16707  4.49%
PF (PF60, PF70) 16250  4.36%
Reeded Edge 15459  4.15%
Ultra Cameo (UCAM) 15401  4.14%
PQ 14200  3.81%
MS (MS60-MS70) 14066  3.78%
PR (PR60, PR70) 14035  3.77%
Rarity 13799  3.71%
Incuse 13095  3.52%
High Relief 12938  3.47%
Coin drop 12925  3.47%
Reverse Cameo 12368  3.32%
Obverse or Face side 12234  3.29%