Rouble mint mark??

Hey - I just got me one of these (a bit battered tbh)

 https://en.numista.com/catalogue/pieces11413.html

Now if I am right the mint mark is on the edge of the coin (A. r) but the r is Russian and my keyboard is English lol. Can anyone give me a bit more guidance please as to if that is indeed the mint mark and what mint that relates to???

Photos available if required.


Thanks for looking!

Please post photo or scans as this makes it easier to help. One of the members should be able to help, yet scans or photos always help
  while I  work

The Cyrillic "upside down L" is the equivalent of "G" in English. Not sure what mint this might be...

Maybe this link would help.

http://www.coinpeople.com/index.php/topic/514-list-of-russian-mints-and-other-foreign-mints/

The lettes AГ on the edge are actually the mint master's intials.

All roubles struck in Saint Petersburg have no mint mark. The ones struck in Paris or Brussels have * or **, respectively, instead of the mint master's intials.

Thanks for your help guys!