Antique German Empire Postal Stationery Cover, 3 Pfennig Reichspost, 1880–1890 Leipzig to Zwickau

Original antique German Empire postal stationery cover bearing a printed 3 Pfennig Reichspost stamp impression. The cover is addressed to Herrn Kramer & Schumann in Zwickau i/S. and has a circular postal cancellation, apparently from Leipzig. A nice 19th-century German postal history item, suitable