Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1094515 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) 55818  13.32%
Silver Clad 32734  7.81%
Coin Silver 24796  5.92%
Slabbed Coins 23715  5.66%
BN 23306  5.56%
Encapsulated Coin 22235  5.31%
RB 21732  5.19%
Deep Cameo (DC or DCAM) 18712  4.47%
PF (PF60, PF70) 18711  4.47%
Reeded Edge 17545  4.19%
Ultra Cameo (UCAM) 17354  4.14%
Obverse or Face side 16819  4.01%
PR (PR60, PR70) 16626  3.97%
Rarity 16563  3.95%
PQ 16287  3.89%
MS (MS60-MS70) 15999  3.82%
Incuse 15306  3.65%
Coin drop 15129  3.61%
High Relief 14948  3.57%
Reverse Cameo 14671  3.50%