Help Identifying This Ancient Coin

Likely Kushan or Kushano-Sasanian, with Shiva/bull reverse.

WOW! That's it!! You two are amazing! Is this common coin?

Ron or others can correct me if I'm wrong, but I believe the AE's of Vasishka are much less common than the similar Vasu Deva I types. However, there's no guarantee that the coin here is indeed Vasishka, especially given the number of local imitations of Kushan types, including imitations of Vasu Deva's king/Siva and bull types. But it does seem like it might be.

Perhaps Kushanshah or Finn, or others, will be along to provide guidance.

The authority in this area is Joe Cribb, former Keeper of Coins and Medals at the British Museum (best job on earth?). Based on the paper linked below, I'm inclined toward "Kushano-Sasanian imitation". In Cribb's analysis, the coins of Vasishka have the king wearing a garment with straight hem, which Cribb describes as "armor". They are distinguished from the similar coins of Vasudeva by fine points of style, weight and (sometimes) Brahmi chhu in the obverse field. The curved hem, which Cribb describes as an "overcoat" is found on the coins of Kanishka II but only with the goddess Ardoxsho on reverse. The "Kushano-Sasanian imitations" in Cribb's scheme combine the curved-hem obverse of Kanishka II with the Oesho (Siva) and bull reverse of Vasudeva and Vasishka. Nothing is set in stone, however. Much is still to be learned regarding Kushan coins and history. https://www.academia.edu/31682150

My coin weighs 4.7 grams, and is about the size of a nickel. Just not as round. I'm a newish Lincoln Wheat cent collector, and a ..I guess I would call myself a very spiritual person..aka (older hippie gal ) So when I saw this at the coin shop just marked as "ancient" I had to buy it..It was next to nothing and I was intrigued. They didnt have knowledge on what it was but said it was ancient.
All of you..your knowledge is incredible! I dont understand some of your lingo..but ill figure it out!! Many thanks!

A bit late to the party, but I'd concur that this is probably a later imitation. The Kushan empire was the pre-eminent trading power between China and Parthia at a time when Rome had more money than they knew what to do with; hence the silk road because why not waste it? Kushan coins were exchanged along the eastern half (if not more) of the Silk Road, and had massive brand recognition value. Even after the Kushans fell to the Sassanians, local kingdoms kept making copies for literally a thousand years after the empire fell! This is a common coin; I see ebay sellers from India selling these in lots of 10-20 for $1-3 per coin.

Indian ancients provide an extremely steep learning curve, but IMO are severely undervalued and underappreciated.

The AV stands for gold, AE for base metal copper or bronze and AR for silver.

Here are a few more pics, in natural light