Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1037666 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) 55263 13.59%
Silver Clad 32204 7.92%
Coin Silver 24299 5.98%
Slabbed Coins 23219 5.71%
BN 22788 5.60%
Encapsulated Coin 21815 5.37%
RB 21257 5.23%
Deep Cameo (DC or DCAM) 18256 4.49%
PF (PF60, PF70) 17990 4.42%
Reeded Edge 17045 4.19%
Ultra Cameo (UCAM) 16907 4.16%
PR (PR60, PR70) 15978 3.93%
Rarity 15958 3.92%
PQ 15809 3.89%
MS (MS60-MS70) 15555 3.83%
Incuse 14865 3.66%
Coin drop 14595 3.59%
High Relief 14488 3.56%
Reverse Cameo 14169 3.48%
Obverse or Face side 13903 3.42%