Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1021101 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) 55107 13.64%
Silver Clad 32086 7.94%
Coin Silver 24171 5.98%
Slabbed Coins 23096 5.72%
BN 22665 5.61%
Encapsulated Coin 21702 5.37%
RB 21112 5.23%
Deep Cameo (DC or DCAM) 18153 4.49%
PF (PF60, PF70) 17883 4.43%
Reeded Edge 16920 4.19%
Ultra Cameo (UCAM) 16819 4.16%
PR (PR60, PR70) 15870 3.93%
Rarity 15787 3.91%
PQ 15691 3.88%
MS (MS60-MS70) 15450 3.82%
Incuse 14755 3.65%
Coin drop 14476 3.58%
High Relief 14379 3.56%
Reverse Cameo 14050 3.48%
Obverse or Face side 13764 3.41%