4 Shillings carmine red, having bright colours and impeccable rouletted extremely fine copy as properly franked single franking on folded letter from \"31\" HUSUM to Flensburg, alongside locate single circle postmark in Danish roman type IIII \"railway station Husum 13.4.1864\", reverse transit postmark \"Schlesw. Post. Sped Bur\" and arrival postmark \"Flensburg (1) 3.4.64\", smoothed archive fold and above new folded cover, in total faultless condition, expertized Jakubek and photo expertize Carl study group Moeller BPP (2022) : \"a very fine example in perfect condition. \"