Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1119966 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) 56033  13.25%
Silver Clad 32937  7.79%
Coin Silver 24991  5.91%
Slabbed Coins 23925  5.66%
BN 23485  5.55%
Encapsulated Coin 22432  5.30%
RB 21932  5.18%
PF (PF60, PF70) 18912  4.47%
Deep Cameo (DC or DCAM) 18868  4.46%
Reeded Edge 17748  4.20%
Ultra Cameo (UCAM) 17546  4.15%
Obverse or Face side 16988  4.02%
PR (PR60, PR70) 16900  4.00%
Rarity 16788  3.97%
PQ 16470  3.89%
MS (MS60-MS70) 16162  3.82%
Incuse 15500  3.66%
Coin drop 15343  3.63%
High Relief 15126  3.58%
Reverse Cameo 14862  3.51%