1934 Airs 25k brown violet (slate purple) triangle pair showing variety: IMPERFORATE INBETWEEN, one adhesive hinged, other never hinged, fine and rare, Liapin no.62 var., Scott no.C5 var. (Image)

1934 Airs 2R small format in proof colour orange (ink spots at front and creased), very rare, original gum hinged and 2R ultramarine large format with strongly shifted perf at left margin, unused (Image)

1936 Zeppelin 25k violet horizontal pair IMPERFORATE INBETWEEN, used, scarce, sign. Roig & Garcia, Madrid, Sc no. C13c unpriced, Liapin 111A var. (Image)

1938 Typo Surcharges 05k on 2a red, used, scarce, Liapin no.118 -.-, Sc 93, Mi 108 (Image)

1939 (-1942) 10k handstamped in black on 1934 airs 1m, old value tablet blackened out, used, scarce, sign., 1992 cert. Chiavarello, Liapin no.123A -.-, Sc 104a -.-, Mi 113a (Image)