Drachm - Samghadaman

Info and reference images below - credited to - 

1. Ancient Indian Coins - A Comprehensive Catalog, Wilfried Pieper; PAIC

2. The Silver Coinage of the Western Satraps in India, A. M. Fishman (AMF); SCWS

Samghadaman was appointed as Kshatrap during the reign of his brother Rudrasena I, for the period 127-129 SE/ 205-207 CE; after a gap he minted coins as Mahakshatrap  during the year 149 SE/ 227 CE

his Kshatrap coins are known from “Mint B” and Mahakshatrap coins from “Mint A” - refer Note from Pankaj Tandon at the bottom

OP Coin is PAIC 3390

Samghadaman as Kshatrap

PAIC 3390, 127-129 SE/ 205-207 CE, Mint B

Obv: Bust of King, date behind with corrupt Greek legend around

Rev: Rajno Mahakshatrapasa Rudrasihaputrasa Rajno Kshatrapasa Saghadamna

          Chaitya (3-arched hill), river below, crescent moon left and sun right above, Brahmi legend around.

 PAIC 3391, 127-129 SE/ 205-207 CE, Mint B

Obv: Bust of King, date behind with corrupt Greek legend around

Rev: Rajno Mahakshatrapasa Rudrasihaputrasa Rajno Kshatrapasa Saghadamna

          Chaitya (3-arched hill), river below, crescent moon right and sun left above, Brahmi legend around.

Samghadaman as Mahashatrap

SCWS 19.1.149, 149 SE/ 227 CE Mint A

Obv: Bust of King, date behind with corrupt Greek legend around

Rev: Rajno Mahakshatrapasa Rudrasihasaputrasa Rajno Mahakshatrapasya Saghadamna(h), few coins are known with his name spelled as               

          Saghadamna

          Chaitya (3-arched hill), river below, crescent moon left and sun right above, Brahmi legend around.

 Sketch of reverse, legend indicating issue of Mint A name of king spelled Saghadamna(h)

note from CoinIndia regarding name variations - Pankaj Tandon

In the current catalogs of Western Kshatrapa coins, such as Jha & Rajgor and Senior, Rudradāman I is shown as having three sons who ruled after him. They are called Damajadasri, Damaghsada and Rudrasimha. However, there has been a long-standing proposal (Indraji, JRAS 1890 and Rapson's BM catalogue) that the coins of "Damajadasri" and "Damaghsada" are actually issues of just one king, whose name was in reality Dāmazāda, and I believe I have confirmed this in my paper The Western Kshatrapa Dāmazāda in the 2009 issue of The Numismatic Chronicle. The theory I have offered to explain the different spellings is that they were produced at different mints. The key point is that Brahmi did not have a letter for the Persian sound z and different mints used different conventions on how to represent it.