Bidspirit auction | Postal History. Pre-philately. Pair of

Postal History. Pre-philately. Pair of letters sent from Coimbra on 1 August 1868 and 4 November 1868 to Luanda, unfranked, with the postage due of 50 reis printed on the front. On the letter of 1 August, the postage due of 50 reis was again applied in Luanda. (letters with defects on the back)