I have come across these 3 coins in a packet with Austria? on it.
The 1st coin is the smallest at 21 mm diameter and 1.73 grams in weight.
The second is this 25 mm Diameter and weight is 2.75 grams.
And the last is 30 mm Diameter and 5.87 grams on weight.
Also the smallest and largest coin have a bit of a curve, and what I would please like some help on is , what coins are they ? are they real ? Thank you all, regards Mark !