Lot 310 Canada #115 1928 8c blue Admiral on Cover to Colombia, South America. Stamp is tied by Saskatoon duplex MAY.13.1928 with Cartagena Colombia arrival on JUL.12.1928 (docket on back). There are also two 10c blue Lindbergh Air Mail stamps tied to cover on front, blue boxed receiver on back “Agencia Postal JUN.30.1928 Cartagena Columbia” and two coloured crayon markings on front. Small cigarette (?) burn on front, else very fine. Estimate $75, SOLD for $120 plus premium.