Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1013449 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) 55061  13.66%
Silver Clad 32037  7.95%
Coin Silver 24126  5.99%
Slabbed Coins 23026  5.71%
BN 22618  5.61%
Encapsulated Coin 21663  5.38%
RB 21035  5.22%
Deep Cameo (DC or DCAM) 18117  4.50%
PF (PF60, PF70) 17836  4.43%
Reeded Edge 16876  4.19%
Ultra Cameo (UCAM) 16784  4.17%
PR (PR60, PR70) 15826  3.93%
Rarity 15692  3.89%
PQ 15645  3.88%
MS (MS60-MS70) 15409  3.82%
Incuse 14706  3.65%
Coin drop 14427  3.58%
High Relief 14342  3.56%
Reverse Cameo 13999  3.47%
Obverse or Face side 13711  3.40%