Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 658767 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) 37983  13.23%
Silver Clad 27137  9.45%
Coin Silver 19295  6.72%
BN 17125  5.96%
Encapsulated Coin 16543  5.76%
Slabbed Coins 16271  5.67%
RB 15708  5.47%
Deep Cameo (DC or DCAM) 12874  4.48%
PF (PF60, PF70) 12511  4.36%
Reeded Edge 12271  4.27%
Ultra Cameo (UCAM) 12004  4.18%
PQ 10750  3.74%
MS (MS60-MS70) 10696  3.72%
PR (PR60, PR70) 10549  3.67%
High Relief 9917  3.45%
Incuse 9870  3.44%
Coin drop 9194  3.20%
Obverse or Face side 9150  3.19%
Rarity 9035  3.15%
Reverse Cameo 8248  2.87%