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Coin Detail
Click here to see enlarged image.
ID:     79000583
Type:     Roman Provincial
Region:     BITHYNIA
City:     Nicaea
Issuer:     Valerian I
Date Ruled:     AD 253-260
Metal:     Bronze
Denomination:     AE 23
Struck / Cast:     struck
Date Struck:     AD 253-260
Diameter:     23 mm
Weight:     6.60 g
Die Axis:     12 h
Obverse Legend:     Γ ΠΟΥΒ ΛΙΚ ΟΥΑΛΣΡΙΑΝΟΣ ΑΥΓ
Obverse Description:     Radiate, draped, and cuirassed bust right
Reverse Legend:     ΝΙΚΑΙΣΩΝ / ΙΡΡΑΠX
Reverse Description:     Hipparchus the Astronomer seated left; globe on pedestal to left
Primary Reference:     RG -
Reference2:     BMC -
Reference3:     SNG VA 717
Reference4:     SNG Cop -
Photograph Credit:     Classical Numismatic Group
Source:     http://www.cngcoins.com/Coin.aspx?CoinID=127094
Grade:     VF, green-brown patina, minor roughness
Notes:     Sale: CNG 79, Lot: 583 Very rare. From the J.S. Wagner Collection.Hipparchus the Astronomer is honored on a few rare issues from Nicaea, where he was born circa 190 BC. His importance to classical astronomy is unsurpassed, as he compiled the first star chart, calculated the sizes of the sun and the moon, determined the length of the seasons, and utilized a trigonometry table before any other mathematician.