Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Denarius of Severus Alexander
Silver denarius of the emperor Severus Alexander (AD 222–235), with his laureate portrait and a Mars reverse dated to about AD 229.
Ancient
Antoninianus of Probus
Late Roman billon antoninianus of Emperor Probus (276-282 AD), identified by his radiate crown portrait on the obverse.
Ancient
Antoninianus of Salonina
Billon antoninianus of the empress Salonina, wife of Gallienus, showing her draped bust and a standing deity on the reverse (256-257 AD).
Ancient
Trinidad and Tobago 1 Dollar
A nickel-plated steel one-dollar coin of Trinidad and Tobago, carrying the national coat of arms and heraldic emblems, dated 2015.
Circulation
Aureus of Augustus
Roman imperial gold coin bearing the bare head of Augustus, first emperor of Rome, struck during his reign from 27 BC to 14 AD.
Ancient Coins
U.S. Constitution Bicentennial Silver Dollar
A 1987 U.S. Mint 90% silver commemorative dollar marking the 200th anniversary of the Constitution, with a quill-pen obverse.
Modern Commemorative
Sacagawea Dollar
U.S. golden-colored dollar coin showing Sacagawea and her infant son on the obverse and a soaring eagle on the reverse, struck 2000–2008.
Dollar
Tetradrachm of Ptolemy I
Silver tetradrachm of Ptolemy I Soter of Egypt, c. 305-283 BC, with his diademed portrait and the Ptolemaic eagle standing on a thunderbolt.
Ancient
Antoninianus
Roman imperial coin of the crisis era, marked by a radiate (spiked) crown on the emperor's head; struck in debased silver-and-copper billon, c. 250-270 AD.
Ancient Coins
Lysimachos Gold Stater
Gold stater of Lysimachos, king in Thrace and Macedon c. 305-281 BC, with a deified head of Alexander the Great and an enthroned Athena reverse.
Ancient
Denarius of Elagabalus
Silver denarius of the young Severan emperor Elagabalus (218–222 AD), with his laureate bust and a standing personified deity on the reverse.
Ancient
Antoninianus of Numerian
Late Roman radiate coin of the short-lived emperor Numerian (283-284 AD), showing his spiked crown and a Victory or standing deity on the reverse.
Ancient
Antoninianus of Otacilia Severa
Roman double-denarius of the empress Otacilia Severa, wife of Philip I (246-248 AD), with her draped bust and a standing personification on the reverse.
Ancient
Antigonos II Gonatas Tetradrachm
Silver tetradrachm of the Macedonian king Antigonos II Gonatas, c. 275-270 BC, with a bearded royal head and a seated Nike holding a wreath.
Ancient
Leif Erikson Commemorative 1000 Króna
Icelandic silver commemorative dated 2000, marking the millennium of Leif Erikson's voyage and the Norse discovery of North America.
Commemorative
Antoninianus of Claudius II
A billon antoninianus of the Roman emperor Claudius II Gothicus (268–270 AD), showing his radiate bust on one side and a standing deity on the other.
Ancient
10 Markka
Finland's largest circulating markka coin: a bimetallic 10 markkaa with a capercaillie bird on the obverse, struck 1993–2001 until the euro.
World
Follis of Diocletian
A large silver-washed bronze coin of the Tetrarchy, introduced by Diocletian's currency reform around AD 294 with a stern laureate portrait.
Ancient
Antoninianus of Trebonianus Gallus
A radiate-crowned billon antoninianus of the emperor Trebonianus Gallus, struck AD 251-253 with a standing deity or personification on the reverse.
Ancient
Denarius of Caracalla
A silver denarius of the Roman emperor Caracalla, struck 198–217 CE, showing his laureate right-facing bust and a Latin legend encircling the design.
Ancient
Bronze Coin of Septimius Severus (Tyre)
Roman provincial bronze struck at Tyre (Phoenicia) under Septimius Severus, 193-211 AD, with the emperor's bust on the obverse and a temple or deity reverse.
Ancient
Congress Bicentennial Silver Dollar
A 1989 U.S. commemorative silver dollar marking 200 years of Congress, pairing a standing Liberty-style figure with an eagle above the U.S. Capitol.
Modern Commemorative
1 Markka
Finland's bimetallic one-markka coin (1993–2001), with a crowned heraldic lion on one face and a large numeral 1 on the other.
World
Denarius of Macrinus
Silver denarius of Macrinus (r. 217–218 AD), a bearded emperor portrait paired with a standing deity or personification on the reverse.
Ancient