Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1002059 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) 54957  13.70%
Silver Clad 31958  7.97%
Coin Silver 24032  5.99%
Slabbed Coins 22942  5.72%
BN 22513  5.61%
Encapsulated Coin 21588  5.38%
RB 20929  5.22%
Deep Cameo (DC or DCAM) 18037  4.50%
PF (PF60, PF70) 17743  4.42%
Reeded Edge 16791  4.19%
Ultra Cameo (UCAM) 16702  4.16%
PR (PR60, PR70) 15735  3.92%
Rarity 15575  3.88%
PQ 15565  3.88%
MS (MS60-MS70) 15324  3.82%
Incuse 14614  3.64%
Coin drop 14327  3.57%
High Relief 14253  3.55%
Reverse Cameo 13894  3.46%
Obverse or Face side 13573  3.38%