50 Pfg bright brownish red on very thinly paper, centric cancellation single circle postmark "BERLIN 28 3 90", all around well perforated, an imperceptible corner tooth perforation crease by of the right lower stamp should with this delicate type of paper be tolerated, the rest values in perfect condition, very nice and extreme unit, Michel already 600.- plus additional charge for the paper variety, expertized Zenker BPP