Collection of mail box cancels of medallons

Quality: ✉

1864 N° 15 "20c. blue", stamp has and unprinted stain at lower left, cancelled P.9-Audenaarde, dated 12 April 1864, to Hornu, with arrival postmark "St.-Ghislain", difficult to read postbox, probably "AL" or "AR" in circle black, the letter address is Eyne, for the specialist, vf