Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1050341 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) 55409  13.56%
Silver Clad 32320  7.91%
Coin Silver 24416  5.97%
Slabbed Coins 23330  5.71%
BN 22905  5.61%
Encapsulated Coin 21907  5.36%
RB 21359  5.23%
Deep Cameo (DC or DCAM) 18379  4.50%
PF (PF60, PF70) 18096  4.43%
Reeded Edge 17164  4.20%
Ultra Cameo (UCAM) 17006  4.16%
Rarity 16116  3.94%
PR (PR60, PR70) 16091  3.94%
PQ 15912  3.89%
MS (MS60-MS70) 15665  3.83%
Incuse 14966  3.66%
Coin drop 14719  3.60%
High Relief 14583  3.57%
Reverse Cameo 14265  3.49%
Obverse or Face side 14012  3.43%