Princes Issue - with Typographic overprint

Quality: **

N° 47PT-Cu "3,50fr. vermillon - Princes issue" with inverted overprint and offset by one horizontal row, stamp position in sheet 22, position of inverted overprint 34, very rare, only one known sheet of 50 with inverted overprint, photo certificate Luc vander Marcken, vf (OBP €1,000)