Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1117611 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) 56020  13.25%
Silver Clad 32921  7.79%
Coin Silver 24977  5.91%
Slabbed Coins 23912  5.66%
BN 23473  5.55%
Encapsulated Coin 22420  5.30%
RB 21918  5.19%
PF (PF60, PF70) 18896  4.47%
Deep Cameo (DC or DCAM) 18860  4.46%
Reeded Edge 17733  4.20%
Ultra Cameo (UCAM) 17535  4.15%
Obverse or Face side 16976  4.02%
PR (PR60, PR70) 16883  3.99%
Rarity 16776  3.97%
PQ 16457  3.89%
MS (MS60-MS70) 16154  3.82%
Incuse 15487  3.66%
Coin drop 15326  3.63%
High Relief 15112  3.58%
Reverse Cameo 14848  3.51%