Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1115365 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) 55994  13.26%
Silver Clad 32900  7.79%
Coin Silver 24957  5.91%
Slabbed Coins 23894  5.66%
BN 23452  5.55%
Encapsulated Coin 22392  5.30%
RB 21898  5.19%
PF (PF60, PF70) 18873  4.47%
Deep Cameo (DC or DCAM) 18844  4.46%
Reeded Edge 17710  4.19%
Ultra Cameo (UCAM) 17511  4.15%
Obverse or Face side 16960  4.02%
PR (PR60, PR70) 16856  3.99%
Rarity 16755  3.97%
PQ 16438  3.89%
MS (MS60-MS70) 16135  3.82%
Incuse 15470  3.66%
Coin drop 15300  3.62%
High Relief 15091  3.57%
Reverse Cameo 14828  3.51%