Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 997867 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) 54920  13.71%
Silver Clad 31929  7.97%
Coin Silver 24004  5.99%
Slabbed Coins 22916  5.72%
BN 22475  5.61%
Encapsulated Coin 21565  5.39%
RB 20891  5.22%
Deep Cameo (DC or DCAM) 18006  4.50%
PF (PF60, PF70) 17704  4.42%
Reeded Edge 16761  4.19%
Ultra Cameo (UCAM) 16678  4.16%
PR (PR60, PR70) 15707  3.92%
Rarity 15536  3.88%
PQ 15533  3.88%
MS (MS60-MS70) 15300  3.82%
Incuse 14587  3.64%
Coin drop 14305  3.57%
High Relief 14228  3.55%
Reverse Cameo 13863  3.46%
Obverse or Face side 13541  3.38%