Auction # 2419 WORLDWIDE + ARGENTINA: Special May auction

Cover + postcard sent from Aes do Porto to Belem on 16/JUN/1931 and from Belem to USA via DOX flight on 8/AU/1931, respectively, both uprated with a "CHARITY STAMP" of 100Rs., possibly a "suggested" surcharge (almost compulsory) for mail in the state of Pará at the time, VF quality and very interesting!