Antique North German Confederation Cover 1870 – Dresden to Greifenhain – 1 Groschen

Antique North German Confederation / Norddeutscher Postbezirk cover sent from Dresden to Greifenhain, dated 1 July 1870. The cover features a 1 Groschen Norddeutscher Postbezirk stamp, Dresden postal cancellations, handwritten address, and a clear business sender stamp “H. Mühlhausen & Hofmann, Dre