Ecuador . 1929, 10s orange red Plane Over River Guayas,. , never hinged block of four, scarce as such, fresh color, trivial mark on one perf at upper right, else very fine. (Sc. C15, $540 as hinged).. Mint NH (Image1)

Est. US$150-200

Ecuador . 1949, Air Post group of six large die proofs,. all die sunk on thick paper or light card, approximately 6.25" x 4.9" unless otherwise noted, with two 1.30s, one in black and brown-red shade (pencil signed), the other olive brown and ultramarine color of issue (approx 5.5" x 5.9"), 3s in color of issue, three 5s, one in color of issue, in dark rose and black without numeral in value tablets, approx 4.9" x 6.1", pencil signed, and in rose and black with numeral in value tablet, all with "Oriol" backstamp, an attractive and uncommon group, fine.. Proof (Image1)

Est. US$200-300