cover -- 50g.(+50g.) white wove and granite paper marginal examples from the foot of the sheet, affixed to 1933 (26.6) XU5 registered to Innsbruck, cancelled by special boxed "WIPA/KÜNSTLERHAUS/WIEN" datestamp and showing special "Flugpost" c.d.s. and registration label adjacent. A couple of small stain spots, otherwise fine. Netto 555-56, Ö.S. 17,750. Photo