cover Liechtenstein, 1930, 35rp Slate Blue, 1fr Lake Air Post (C4, C6), two singles of 35rp and pair of 1fr, tied by neat strikes of Triesenberg 1.X.30 c.d.s. on cacheted cover to New York (Sieger no. 98a), additional Friedrichshafen c.d.s., small tear in backflap, otherwise appears fineest.