There are other types (3 flat, 3 oval...), but none have this kind of upper part of number 3....not oval, not flat, but both, kind of....you can also see a "shadow" of number 30 on the other side (pic. 3)
More info about these coins here (in German):
- https://www.myhandicap.de/recht-behinderung/schwerbehindertenausweis/merkzeichen/freifahrt/
Some more info would be appreciated...
Description:
- 30 Wert-Marke
- very light (aluminum ?)
- 24mm wide
- around 1mm thick
