RSFSR. Ordinary letter sent from Moscow on October 17, 1923. Mixed frank.

Cover of ordinary letter sent from Moscow to Berlin (Germany) on October 17, 1923. Tax was 0,20 kopeks (October 16, 1923 - October 01, 1925). RSFSR stamps were calculated according to the tax: 500-600 rubles for 1 gold ruble. Letter was paid by 13 kopecks. Extra charge postmark and post notations are on the front side. Mixed frank of USSR and RSFSR stamps. Rare.