1840, One penny black, plate 6, FI, having full margins and having bright colours extremely fine copy as a single franking on cover with cancellation through red Maltese Cross cancel, addressed to Newburg Berks, a colour-fresh and very decorative entire piece the world wide first postage stamp, expertized Roumet and photo expertize Louis BPP: \"genuine and in perfect state of preservation. \" - one of the most beautiful known covers of the first stamp of the world!