Corinphila Auction 291-297 Day 2

1882/85: Official 3 d. yellow-green and 6 d. pale lilac, optd. "OS", used on imprinted OHMS cover of the "Australian Museum, Sydney" to Prague endorsed "via Naples per Lusitania", tied by "Oxford Street" cds (May 22) in black. The cover with diagonal cuts as mailed during the Smallpox epidemic of 1882-1883. reverse with Sydney, Venezia (July 25) and Prague cds's. A very scarce and appealing cover.rnrn