I bought one recently as an unknown Greek coin, after researching it. My one is definitely a fake as it was very cheap, there are only a few in existence, plus the size and weight are wrong. I bought it primarily as I had known nothing about the Jewish war coins and found the subject very interesting. It is just a keepsake, plus it keeps it off the market. Interesting article here: https://coinweek.com/ancient-coins/...ekel-year-5/
The coin on the right in the OP photo has the look of a modern cast fake. Can't say much about the coin on the left.
That said, this is a very popular and consequently very heavily counterfeited type, so any example you see outside of some very trusted contexts is probably more likely to be fake than not.
If you did not buy this from a well known established ancient coin dealer or long time collector it may be fake. There are a couple sites that show fake coin examples like Forum Ancient Coins fakes list and Forgery Network to compare. You could send it to David Sear or another expert for an opinion.
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