Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 930387 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) 54187  14.01%
Silver Clad 31323  8.10%
Coin Silver 23392  6.05%
Slabbed Coins 22227  5.74%
BN 21760  5.62%
Encapsulated Coin 21026  5.43%
RB 20113  5.20%
Deep Cameo (DC or DCAM) 17413  4.50%
PF (PF60, PF70) 17017  4.40%
Reeded Edge 16124  4.17%
Ultra Cameo (UCAM) 16118  4.17%
PQ 14885  3.85%
MS (MS60-MS70) 14741  3.81%
PR (PR60, PR70) 14734  3.81%
Rarity 14705  3.80%
Incuse 13869  3.58%
High Relief 13620  3.52%
Coin drop 13611  3.52%
Reverse Cameo 13138  3.40%
Obverse or Face side 12893  3.33%