From what I see, it is a coin of one the rulers of Kashmir which are only different by their legends unreadable on you image. I'll show a few so perhaps you can compare the 'squiggles' and find a match. There are several others but we are limited to five attachments and these are common ones. There is relatively little difference in the sales
price of these in the US partly because the number of dealers that can read the legends is not large. The most common are Didda Rani (a queen with a very interesting
history) and her nephew Sangama Deva (most common and less interesting as a story compared to Didda).
We don't comment on prices but $350 is at least 10 to 20 times what I would call
fair unless there is something hiding here but a
medieval Indian coin mislabeled as shown on the holder is unlikely to be other than a common one. Post a better photo and we will try to ID. We send our troops to that
part of the world where some will try to kill them. Others just cheat them out of their
money. I encourage anyone sending a son overseas to have a talk first about the facts of the marketplace. In many places in the world, cheating tourists and soldiers is a national sport.