Bidspirit auction | Angola * Revenue stamped paper.

Angola * Revenue stamped paper. Declaration of coal seam discovery, with a promise to buy and sell the seam, dated Moçâmedes (07.07.1886), on paper with a square printed stamp, with the caption “STAMP IMPOSTO / 40 (réis)”, with a green rectangular surcharge “ULTRAMAR” and three additional duty stamps of 20 réis (pair +1), PB2.