Hello and welcome to Numista. The piece you have would be considered a medallion rather than a token and would likely have been produced in large quantities. Having said that, it looks like someone has added it to the Numista Token catalogue with pictures of a piece like yours with the loop cut off!
https://en.numista.com/catalogue/pieces53887.html
From the pictures it looks like yours has been worn (on a chain possibly) and there is some loss of detail to the design as a result. In terms of value, your best bet would be to search online auction sites (such as eBay) to see what other examples have sold for. Hope this helps.
Just because you can't see it ... doesn't mean it isn't there - Anon.
Former coin and banknote catalogue referee.