Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1061851 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) 55507  13.52%
Silver Clad 32408  7.90%
Coin Silver 24524  5.98%
Slabbed Coins 23404  5.70%
BN 22995  5.60%
Encapsulated Coin 21988  5.36%
RB 21447  5.23%
Deep Cameo (DC or DCAM) 18463  4.50%
PF (PF60, PF70) 18182  4.43%
Reeded Edge 17266  4.21%
Ultra Cameo (UCAM) 17091  4.16%
Rarity 16210  3.95%
PR (PR60, PR70) 16191  3.94%
PQ 15997  3.90%
MS (MS60-MS70) 15738  3.83%
Incuse 15037  3.66%
Coin drop 14829  3.61%
High Relief 14676  3.58%
Reverse Cameo 14356  3.50%
Obverse or Face side 14106  3.44%