Western Kshatrapas, Karddamaka dynasty Chastana As Raja Mahaksatrapa, (ca. 1-52 SE / ca. c. 78-130 AD), Silver drachm, Trilingual Satavahana Type Hill, Mint C,(Wt : 2.31g, Dia : 14.03 mm).

Obverse : Well executed bust of king facing right, wearing typical flat cap and earrings; corrupt Greco-Prakrit inscription around. 

Reverse : Crescent on a six-arched hill over a wavy line, sun in the left field, crescent  in the right field, two inscriptions - one in Brahmi (Ralño MaHaKsaTraPaSa GhsaMoTiKaP«TraSa ChaȘtaNaSa) and one in Kharoshți (RaÑo).

Comment :
"Mint C" With Satvahana Six Arched Hill

Coins from this mint are easily recognizable by their use of the six-arched hill instead of the normal three-arched hill. The early types issued with a title of a Katrapa were using the normal bilingual reverse, Coins from this issue are known only for Chastana and Jayadāman. The location of this mint is not known, but the use of the Satavahana six-arched hill might suggest that these coins were minted in a mint taken from the Satavahanas, probably located in Malwa. This Trilingua Transitional variety carries very interesting and previously unknown type. It combines the earliest type of Chastana (Type #1) which shows only the crescent and the sun with a 6-arched hill. It can be regarded as a trial issue or a transition issue from the "sun and crescent" type to the normal "hill, star and crescents" type. Fishman type 4.14R, pg. 49, Very Rare.