Cover franked with 1920 100rs orange yellow, 200rs rose red & 400rs blue 'Industry' issue, 1927 1000rs on 20rs black & olive AIR overprint issue and 1929 pair 500rs purple and 1000rs red brown AIR issue (SG 326, 330, 334, 448, 472 & 473) tied by NYRBA DO BRASIL SERVICIO AEREA RIO DE JANEIRO cds's dated 19 FEB 1930. Flown on the Rio de Janeiro - New York NYRBA first flight with various first flight cachets on front. Addressed to USA with lovely black, blue, red & white 'Seagull' CINDERELLA label inscribed 'VIA NYRBA' on reverse. Uncommon. (Muller #56)