Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1055407 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) 55446  13.55%
Silver Clad 32350  7.90%
Coin Silver 24456  5.97%
Slabbed Coins 23358  5.71%
BN 22945  5.61%
Encapsulated Coin 21943  5.36%
RB 21394  5.23%
Deep Cameo (DC or DCAM) 18412  4.50%
PF (PF60, PF70) 18126  4.43%
Reeded Edge 17206  4.20%
Ultra Cameo (UCAM) 17037  4.16%
Rarity 16153  3.95%
PR (PR60, PR70) 16135  3.94%
PQ 15946  3.90%
MS (MS60-MS70) 15691  3.83%
Incuse 14993  3.66%
Coin drop 14757  3.61%
High Relief 14618  3.57%
Reverse Cameo 14301  3.49%
Obverse or Face side 14045  3.43%