We have this coin:

This coin meets all the mentioned external characteristics of this coin:
https://en.numista.com/catalogue/pieces166565.html
however, no weight and diameter are mentioned here.
We would like to find out whether it is actually this coin. The weight is 2,45 gram and the diameter is 20 mm.
The coin is gold colored, 'Not Magnetic' and medal allignment, the Year on the coin is 1752.
Does anyone know of it could be this coin or does anyone happen to know if this coin is (often) counterfeit?
Thank you very much for your help!