cover 1892 (30 Jan.) XU5 from Tientsin to Frankfurt via the German P.O. in Shanghai, bearing on reverse perf. 11½ - 12 1ca. bright green and 5ca. olive-yellow cancelled by seal type in blue with "CUSTOMS/TIENTSIN", "CUSTOMS/SHANGHAI" double ring d.s. and arrival c.d.s. adjacent, and franked on face by "eagle" issue 20pf. blue pair tied by a fine strike of the "KAISERLICH/DEUTSCHE/POSTAGENTUR/SHANGHAI" c.d.s. Rare and appealing. Photo.