Bidspirit auction | Portugal Post Office Strike. Illustrated

Portugal Post Office Strike. Illustrated postcard sent from Las Palmas, Spain (08.03.20), with a pair of 5cs to Lisbon, postcard marked upon arrival with two different type cancellations, one struck in black and the other in violet “CONFEDERAÇÃO PATRONAL / LISBOA – PORTUGAL / GREVE / CORREIOS / 1920”. Rare