Collection of mail box cancels of medallons

Quality: ✉

1868 N° 11A "20c. blue", letter envelope without contents, cancelled P.75-Lokeren, not fully margined with upper border, dated 6 September 1859, to Nederbrakel (nice arrival postmark), postbox "AZ" in hexagon black, not described in "La Poste Rurale" in 1850 or in 1868, vf