Cover of ordinary letter sent from Moscow to Linkoln (USA) on November 14, 1923. Tax was 20 kopecks (October 16, 1923 - October 01, 1925), paid by RSFSR stamps, paid extra for the weight at the rate of 500-600 roubles per 1 gold rouble. Letter was paid at 32 kopecks. Mixed franking of USSR and RSFSR stamps. Rare.