Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 975846 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) 54755  13.80%
Silver Clad 31763  8.00%
Coin Silver 23850  6.01%
Slabbed Coins 22743  5.73%
BN 22290  5.62%
Encapsulated Coin 21430  5.40%
RB 20675  5.21%
Deep Cameo (DC or DCAM) 17859  4.50%
PF (PF60, PF70) 17521  4.41%
Reeded Edge 16599  4.18%
Ultra Cameo (UCAM) 16544  4.17%
PQ 15395  3.88%
Rarity 15335  3.86%
PR (PR60, PR70) 15244  3.84%
MS (MS60-MS70) 15175  3.82%
Incuse 14416  3.63%
Coin drop 14133  3.56%
High Relief 14073  3.55%
Reverse Cameo 13672  3.44%
Obverse or Face side 13385  3.37%