Solution:Eucratides, an Indo-Bactrian ruler, issued coins to commemorate his parents, Heliocles and Laodice. These coins are notable for their depiction of the king's familial lineage, which was an unusual practice at the time. By including his parents on his coins, Eucratides not only honored them but also utilized the imagery to strengthen his legitimacy as a ruler.
This practice indicates a sophisticated use of coinage as a medium for personal and political communication, highlighting the ruler's heritage and solidifying his claim to the throne in a region characterized by frequent dynastic changes and political instability.