Regensburg Coin 1523 [решено]

Hi,
does someone know if this coin is real or not?
I searched it up on the Internet, but the other coins do not have an "A" next to the coat of arms on it. Unfortunatley I can't weight it. Does someone can help me with this pictures? (Sorry for bad english)

The A looks like a later counterstamp.

It looks good to me. I have a similar type from slightly earlier (1513).
As pointed out by @bjherbison, the A stamp was added later

Цитата: "tdziemia"​It looks good to me. I have a similar type from slightly earlier (1513).
​As pointed out by @bjherbison, the A stamp was added later

​Thank you for your answers!