10 cent. blue with inverted centerpiece

Lot number 3749 Quality: *

No 18B, perforation 14, inverted centre, position frame 49 centre 2, certificates of Luc vander Marcken, Michaux and Tavano, vf (OBP €5,000) - see photo cover

Lot number 3750 Quality: 0

No 18A, perforation 15, inverted centre, blue cancel "LEOPOLDVILLE", position frame 32, centre 19, certificate Luc vander Marcken, vf (OBP €5,000) - see photo cover

Lot number 3751 Quality: *

No. 18B, perforation 14, inverted centre, position frame 42 centre 9, certificate Luc vander Marcken, vf (OBP €5,000) - see photo cover

Lot number 3752 Quality: 0

No. 18A, perforation 15, inverted centre, faint blue cancel, position 7 frame and centre 4, certificates Kaiser + Luc vander Marcken, f (OBP €5,000) - see photo cover

Lot number 3753 Quality: *

No. 18B, perforation 14, inverted centre position frame 34 centre 17, certificates BCSC + Luc vander Marcken, vf (OBP €5,000) - see photo cover

Lot number 3754 Quality: *

No. 18B, perforation 14, inverted position frame centre 31, certificates Luc vander Marcken, Michaux, Tavano, vf (OBP €5,000) - see photo cover

Lot number 3755 Quality: *

No. 18B, perforation 14, inverted centre, position frame 18 centre 33, certificate Luc vander Marcken, vf (OBP €5,000) - see photo cover

Lot number 3756 Quality: *

No. 18B, perforation 14, inverted centre, position frame 4 and centre 47, certificate Luc vander Marcken, vf (OBP €5,000) - see photo cover

Lot number 3757 Quality: *

No. 18B, perforation 14, inverted centre, small tone point, position 33 frame and centre 18, certificate Luc vander Marcken, vf (OBP €5,000) - see photo cover