This is the thin variety: https://en.numista.com/catalogue/pieces22588.html
The coin in the first link weight 0.65 g., the one in this link 0.48 g. so you have to weigh your coin to know which one is yours. I don't know which of the two is the most common.
I don't have a scale, but I do have some calipers. I measured 10.7 mm diameter. The two coins show 10.8 and 11.3 mm diameters. I figured that with rounding error I had the 10.8 mm or heavier thicker one. Is it safe to go on diameter alone, or do I need to find a scale?
To be honest, I find a scale much more reliable. I believe much more collectors use a digital scale than a caliper and measure a diameter with a ruler instead of a caliper isn't that reliable and we don't know if the figures on the coin page come from measuring with a ruler or with a caliper. For the weight, nobody will weigh such a small coin with a kitchen scale, so the weight figures on the coin page will almost certain come from a digital scale (or from a "reliable" source like Krause).
