Lot 40049 – 1866, 50r blue, horizontal block of eight with postmark

1866, 50r blue, horizontal block of eight, cancelled by cork segmented cancels; tiny thin spot at top right; the third largest used multiple, of which three are known, this being unique with a postmark and not by a manuscript usage, thus adding a valuation degree.

Provenance: Dr. de Amaral Machado.