Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 953108 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) 54489  13.89%
Silver Clad 31563  8.05%
Coin Silver 23644  6.03%
Slabbed Coins 22496  5.74%
BN 22043  5.62%
Encapsulated Coin 21252  5.42%
RB 20411  5.20%
Deep Cameo (DC or DCAM) 17643  4.50%
PF (PF60, PF70) 17276  4.40%
Reeded Edge 16383  4.18%
Ultra Cameo (UCAM) 16343  4.17%
PQ 15162  3.87%
Rarity 15031  3.83%
PR (PR60, PR70) 14987  3.82%
MS (MS60-MS70) 14957  3.81%
Incuse 14155  3.61%
Coin drop 13904  3.54%
High Relief 13856  3.53%
Reverse Cameo 13429  3.42%
Obverse or Face side 13132  3.35%