Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1112495 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) 55976  13.27%
Silver Clad 32878  7.79%
Coin Silver 24933  5.91%
Slabbed Coins 23877  5.66%
BN 23435  5.55%
Encapsulated Coin 22373  5.30%
RB 21878  5.19%
PF (PF60, PF70) 18859  4.47%
Deep Cameo (DC or DCAM) 18828  4.46%
Reeded Edge 17684  4.19%
Ultra Cameo (UCAM) 17492  4.15%
Obverse or Face side 16944  4.02%
PR (PR60, PR70) 16827  3.99%
Rarity 16727  3.96%
PQ 16421  3.89%
MS (MS60-MS70) 16120  3.82%
Incuse 15447  3.66%
Coin drop 15279  3.62%
High Relief 15071  3.57%
Reverse Cameo 14808  3.51%