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BRAZIL - 1944 'AEREO' SURCHARGES VARIETIES & ERRORS STUDY COLLECTION of mint or never hinged with 1944 set (Scott C55/59, SG 693/97), reversed colours set NHM (20c, 40c & 1cr surcharges in black and 40c & 1.20cr surcharges in red), 400c on 400r double surcharge block of 4 & 60c on 400c double surcharge unused, inverted surcharges set NHM, 20c on 400r & 60c on 400r imperf horiz pairs NHM & corner singles unused, 1cr on 400r pair & strip of 3 imperf horiz NHM. (31 stamps)