I contacted Stan Goron who now collects in this area and he agrees 100% that the mint is Ran'ash and the word Abbas would not occur with out 'Shah' but the reply on zeno does not agree :
Thank you for uploading this important image, that clearify reding of the coin that is "zarb fulus-e 'Abbas", i.e. struck fulus of Abbas.
The letter "rā" never wrore on the coins in this way, just compare with the coins of Tabriz, Ardabil or Irawan. And by the way, you can see the same curvy "ra"-like element near to "sin".
Moreover, there are 1) no clear evidences for existing of the toponym "Ra'nash", 2) this "mint" never struck any copper coins except of this year and absolutly no silver coin that is absolutly non-sense for Iranian tradition of coin producing, 3) for the whole reign of Abbas I we don't know any coins from the mints but only with the name of shah.