Seal of Bando, an Alchon Hun, in 3-flower crown 4th-6th C. CE

Seal of a man holdings a flower beside a symbol, or "tamga", of the Alchon Huns. According to IranicaOnline, the Bactrian wording says "Bando", which might be a personal name.

Screenshot from IranicaOnline link below.

Source/Quote:

https://www.iranicaonline.org/articles/seals-and-sealings-in-the-eastern-iranian-lands#prettyPhoto