Hi
Curtis, thanks. I also am not well versed in
Indian coins, but I collect coins minted in Afghanistan under different rulers. As I said these
bull and horseman coins are widespread geographically and over time and they seem to get more abstract over time. They are attractive coins. On this one, it is Nagari script which is a descendant of Brahmi script. Unfortunately, I don't have any books, but Tye did publish for free
his Type catalog. I was able to confirm the Tye number, but the
catalog of line drawings that are super helpful has no explanatory text. The full book is very expensive. There are a couple of people here, like Jan P and Kamaskires, who know far more than I do, perhaps they will weigh in. I do not think they are
part of the calligraphy, mainly because the earlier coins (such as my Kabul Shahis coins) are less abstract and the legends are more separated.
Virgil