1919, First Aerial Post England-Australia, the so-called Ross-Smith vignette in dark blue tied by flight cachet "FIRST AERIAL MAIL 26.FEB.1920" to cover with adjacent three line handstamp "PER VICKERS VIMY AEROPLANE TO AUSTRALIA" to Melbouren, fine and rare cover, signed A. Diena with certifacate (1961) and Raybaudi with certificate (1971) (Image)