In Bharttṛidáman’s earlier coins the legend reads:
राज्ञो महाक्षत्रपस रुद्रसेनपुत्रस राज्ञः क्षत्रपस भर्तृदाम्नः
Rajño Mahákshatrapasa Rudrasenaputrasa Rajñaḥ Kshatrapasa Bhartṛidámnaḥ.
Of the king the Kshatrapa Bharttṛidáman son of the king the great Kshatrapa Rudrasena.
In the later coins the legend is the same except that महाक्षत्रपस the great Kshatrapa takes the place of क्षत्रपस the Kshatrapa.
Kshatrapa XX. Viśvasena, a.d. 294–300.Bharttṛidáman was succeeded by his son Viśvasena the twentieth Kshatrapa. His coins are fairly common, and of bad workmanship, the legend imperfect and carelessly struck, the obverse rarely dated. Of twenty-five in Dr. Bhagvánlál’s collection, only three bear doubtful dates one 218 and two 222. The legend reads:
राज्ञो महाक्षत्रपस भर्तृदामपुत्रस राज्ञः क्षत्रपस विश्वसेनस,
Rájño Mahákshatrapasa Bhartṛidáma putrasa Rájñaḥ Kshatrapasa Viśvasenasa.
Of the king the Kshatrapa Viśvasena son of the king the Mahákshatrapa Bharttṛidáman.
It would seem from the lower title of Kshatrapa which we find given to Viśvasena and to most of the later Kshatrapas that from about 220 (a.d. 298) the Kshatrapa dominion lost its importance.