50 Pfennig Crown / Eagle, vivid reddish-brown, vertical pair, plate flaw I "T of Reichspost broken horizontally" on the lower stamp (field 39), postmarked "BIELEFELD -4. 2. 91" on a piece of mail, flawless condition, photographic finding by Michael Jaeschke-Lantelme BPP "in error-free, used condition.", Michel 250.-