Netherlands East Indies coins

Received some Netherlands East Indies coins as part of a larger collection today and was wondering how much variation should I expect in the dimensions (I need a scale, so I do not have weights yet).



West Friesland Duit 1745 - this coin is only 21mm (consistent around circumfrence) The privy mark is appropriate for the year, and I can make out a few details in the top lions face.



Utrecht Duit 1786 - this coin is 21mm at its widest points (possibly clipped). The privy mark is also appropriate, but the surfaces are pitted. I am thinking this one is faked.

Could I get some opinions?