Hello,
Really struggling to identify this coin I have recently acquired. It is rather faded and cannot pick out the lettering properly. It looks like ‘REX - ETRE’ on the front and unsure on the obverse.
It is approximately 25mm in diameter but it is not perfectly round and weighs 3 grams on my scales which only go to the nearest g. Any help would be much appreciated. Thank you.
Front: two images of same coin, at different orientation. It looks a bit like a dragon/lion in the middle.
Obverse: To me, it looks like a castle in the middle.


