German Empire Cover 1887, 5 Pfennig Deutsche Reichspost, Templin to Hindenburg, Prussian Court Seal

Original antique German Empire postal cover from 1887, franked with a violet 5 Pfennig Deutsche Reichspost stamp. The stamp is cancelled with a circular Templin postmark, dated 31 October 1887. The cover appears to be addressed to a recipient in Hindenburg near Templin. The reverse bears a blue off