Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1154176 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) 56366  13.14%
Silver Clad 33229  7.74%
Coin Silver 25316  5.90%
Slabbed Coins 24237  5.65%
BN 23769  5.54%
Encapsulated Coin 22720  5.30%
RB 22235  5.18%
PF (PF60, PF70) 19229  4.48%
Deep Cameo (DC or DCAM) 19104  4.45%
Reeded Edge 18042  4.20%
Ultra Cameo (UCAM) 17822  4.15%
PR (PR60, PR70) 17256  4.02%
Obverse or Face side 17238  4.02%
Rarity 17159  4.00%
PQ 16760  3.91%
MS (MS60-MS70) 16418  3.83%
Incuse 15806  3.68%
Coin drop 15700  3.66%
High Relief 15416  3.59%
Reverse Cameo 15182  3.54%