Bidspirit auction | Angola. Registered letter, dispatched from

Angola. Registered letter, dispatched from Lobito on June 3, 1946, by airmail to Luanda, paying $50 for postage and $50 for registration, totaling $1.00 ($60 stamp and a pair of $20 stamps with assistance stamps, acting as postage stamps), and 0.90 airmail surcharge.