Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1079905 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) 55676  13.45%
Silver Clad 32591  7.87%
Coin Silver 24683  5.96%
Slabbed Coins 23583  5.70%
BN 23175  5.60%
Encapsulated Coin 22138  5.35%
RB 21612  5.22%
Deep Cameo (DC or DCAM) 18605  4.49%
PF (PF60, PF70) 18521  4.47%
Reeded Edge 17422  4.21%
Ultra Cameo (UCAM) 17251  4.17%
PR (PR60, PR70) 16466  3.98%
Rarity 16398  3.96%
PQ 16164  3.90%
MS (MS60-MS70) 15888  3.84%
Incuse 15187  3.67%
Coin drop 14997  3.62%
High Relief 14835  3.58%
Reverse Cameo 14537  3.51%
Obverse or Face side 14244  3.44%