Saudi Arabia 1 Riyal 1935

Hello guys, someone already hear about fake coins of the Saudi Arabia 1 Riyal 1935? I have two here that have almost the same weight (0,04gr difference), all fine details are OK, but the thickness is different and in the Bullion Test sound test the silver alloy is a little bit different, anyone can help me? Thanks all. https://en.numista.com/catalogue/pieces14755.html

Hello, I am not familiar with this coin, but can you make some pictures for comparison, what about magnetic test? And the edge?

One must be careful with these crown sized coins, a lot of fakes are coming from Russia lately!

Magnetic test all OK, in attachment some pictures of the coins, the quality is not perfect but I think you can have an idea...The interesting/strange part is that the thinner one have 11,60gr and the thicker one 11,56gr...

To be sure use a digital caliper to measure the thickness. The human eye sometimes plays tricks with reality (for instance because the sides of the edge are a bit slant). I experienced this before with other coins who seem to have a difference in thickness at first sight but when you measure the thickness there is no difference.
Look at the picture. I drew a line equal to the thickness of both coins, then copied the line of the left coin and pasted it right under the line of the right coin and the difference is almost nothing. Of course it's possible the line on the left coin is not correct because the slant of the edge sides is due to blur of the picture. That's why it's better to use a digital caliper (or a normal caliper when your eyesight is still all right).

Essor Prof thanks for your thoughts, I will measure it and soon I post here the measures...