Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1070521 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) 55583  13.48%
Silver Clad 32488  7.88%
Coin Silver 24599  5.97%
Slabbed Coins 23490  5.70%
BN 23067  5.60%
Encapsulated Coin 22061  5.35%
RB 21527  5.22%
Deep Cameo (DC or DCAM) 18527  4.49%
PF (PF60, PF70) 18433  4.47%
Reeded Edge 17344  4.21%
Ultra Cameo (UCAM) 17168  4.16%
PR (PR60, PR70) 16370  3.97%
Rarity 16289  3.95%
PQ 16082  3.90%
MS (MS60-MS70) 15808  3.83%
Incuse 15109  3.67%
Coin drop 14905  3.62%
High Relief 14757  3.58%
Reverse Cameo 14435  3.50%
Obverse or Face side 14172  3.44%