China PR.; 1971 Propaganda stationery cover to Germany by airmail affixed with "25th of Pub on Literature and Art" a single highest denomination of 52f(#W27) with left margin tied by double-ring cds dated 1971.8.4. Cover with vertical center folded with rough opened but not effecting postage stamp. Still in fine conditioon. Rare postally usage of high value on cover. F.(1)