Auction #170503- WORLDWIDE + ARGENTINA: attractive general auction!

Airmail cover sent from Berlin to Moscow (Russia) on 4/JUN/1923, franked on back with 2,450Mk., apparently insufficient, with a violet mark on front: "Perçu l´insufisance de 1000 Mk. par le bureau de Königsberg (Pr.)", and at lower left the same inscription but hand-written, of the Berlin office, with some minor defects, very interesting!