The cover of a ordinary letter, sent from post van N 99 Khartsisk-Dolinskaya on 21.04.1923, throuth Moscow 26.04.1923 to Berlin (Germany). Corect tariff 5 rub. The cover franking includes with five stamps 70 rub. with local perforation. Unique franking stamps 70 rub. with local perforation cover known at present time. Very Rare.