Bidspirit auction | Porto / Barra do Porto

Porto / Barra do Porto and Stamp Law – In blue LF PRT-BA6 and in red LF PRT-LEY2, on the stampless folded cover of letter sent from Rio de Janeiro (10.06.50) to Lisbon (14.08.50) via Porto (10.08.50), by the ship Admiral of Cape Verde, rated upon arrival in Porto with 160 réis, struck in blue, for the first rate of a foreign letter entered via Barra do Porto weighing up to 1 oitava, amended in Lisbon to 200 réis, struck in blue by adding the territorial rate of 40 réis + 5 réis of the stamp law, in red applied in Porto and amended in Lisbon to 10 réis, handwritten in sepia, corresponding to 5% of the rate calculated on the amendment rate. Very scarce.