Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1110373 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) 55961  13.27%
Silver Clad 32865  7.79%
Coin Silver 24921  5.91%
Slabbed Coins 23851  5.66%
BN 23424  5.56%
Encapsulated Coin 22360  5.30%
RB 21864  5.19%
PF (PF60, PF70) 18842  4.47%
Deep Cameo (DC or DCAM) 18817  4.46%
Reeded Edge 17673  4.19%
Ultra Cameo (UCAM) 17477  4.14%
Obverse or Face side 16937  4.02%
PR (PR60, PR70) 16810  3.99%
Rarity 16711  3.96%
PQ 16406  3.89%
MS (MS60-MS70) 16108  3.82%
Incuse 15439  3.66%
Coin drop 15265  3.62%
High Relief 15058  3.57%
Reverse Cameo 14796  3.51%