Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 939180 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) 54303  13.96%
Silver Clad 31414  8.07%
Coin Silver 23491  6.04%
Slabbed Coins 22342  5.74%
BN 21876  5.62%
Encapsulated Coin 21128  5.43%
RB 20229  5.20%
Deep Cameo (DC or DCAM) 17513  4.50%
PF (PF60, PF70) 17132  4.40%
Reeded Edge 16231  4.17%
Ultra Cameo (UCAM) 16216  4.17%
PQ 14995  3.85%
PR (PR60, PR70) 14839  3.81%
Rarity 14836  3.81%
MS (MS60-MS70) 14828  3.81%
Incuse 13971  3.59%
Coin drop 13727  3.53%
High Relief 13715  3.53%
Reverse Cameo 13262  3.41%
Obverse or Face side 12987  3.34%