Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1152201 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) 56342  13.15%
Silver Clad 33204  7.75%
Coin Silver 25296  5.90%
Slabbed Coins 24223  5.65%
BN 23750  5.54%
Encapsulated Coin 22696  5.30%
RB 22212  5.18%
PF (PF60, PF70) 19196  4.48%
Deep Cameo (DC or DCAM) 19090  4.45%
Reeded Edge 18026  4.21%
Ultra Cameo (UCAM) 17801  4.15%
PR (PR60, PR70) 17231  4.02%
Obverse or Face side 17217  4.02%
Rarity 17137  4.00%
PQ 16743  3.91%
MS (MS60-MS70) 16401  3.83%
Incuse 15786  3.68%
Coin drop 15675  3.66%
High Relief 15398  3.59%
Reverse Cameo 15162  3.54%