Bidspirit auction | Airmail. Mozambique. Letter dispatched from

Airmail. Mozambique. Letter dispatched from Lourenço Marques on October 2?. 1937, by air to Hamburg. Paid postage of 4.80 francs, inscribed on the blue label Mf#4. Label crossed with 2 red lines, indicating that the paid postage did not cover air transport to the destination. Transit in Europe by train.