Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 949930 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) 54450  13.91%
Silver Clad 31534  8.05%
Coin Silver 23612  6.03%
Slabbed Coins 22468  5.74%
BN 22014  5.62%
Encapsulated Coin 21229  5.42%
RB 20373  5.20%
Deep Cameo (DC or DCAM) 17623  4.50%
PF (PF60, PF70) 17245  4.40%
Reeded Edge 16352  4.18%
Ultra Cameo (UCAM) 16320  4.17%
PQ 15117  3.86%
Rarity 14991  3.83%
PR (PR60, PR70) 14951  3.82%
MS (MS60-MS70) 14934  3.81%
Incuse 14107  3.60%
Coin drop 13865  3.54%
High Relief 13831  3.53%
Reverse Cameo 13399  3.42%
Obverse or Face side 13103  3.35%