Typographical overprint of Boma

Quality: *

N° 100 "10c. sur 5c. vert", overprint in block of 4 with sheet margin, positions 19-20/24-25 of the sheet, combination V.2 + E.2, perforation 14, overprint variety missing "C" on position 25 is characteristic of plate type "b" of the overprints, vf