Montenegro - postal stationery 1894, stationery envelope 10nkr. blue uprated by 3nkr. green and 7nkr. pale violet sent registered from "CETTINJE 24/3" to Frankfurt/Germany with arrival mark 28.3. on reverse, slight toning/imperfections, overall fine. Condition: postal stationery Catalog number(s): U 3 II; 2+4 (Image)