1937 CADIZ cover to Seville, bearing Provincial 5c blue block ofo four, and Spain 15c block of four with Columbus ship overprint, tied by boxed cancels, black Censor mark. [US4] (Start Price = £24.80) (Image)

1937 CANARIAS cover to France, bearing Air overprinted 50c, 80c and 1p.25, and Las Palmas 10c tied by boxed cancels. [US4] (Start Price = £24.80) (Image)

1937 LUGO cover to Paris, bearing overprinted 30c strip of three, and Lugo 10c tied boxed cancels, violet Lugo Censor mark. [US4] (Start Price = £24.80) (Image)