Ecuador COLOUR TRIAL "1944" AIR MAIL (1946) Stamps SPECIMEN 3s-10s Blocks UM MNH{30} MB28

Note "1944" Air Mail HIGH VALUES in superb BLOCKS OF TEN (3 values). MAP Design issued 1946 commemorating the Pan-American Highway. SUPERB AIR MAIL THEMATIC & attractive exhibition item. SELDOM OFFERED IN SUCH MULTIPLES. Some splitting of perfs as usual with these. Wonderful fresh unmounted mint SPECIMEN block from the archives of the American Banknote Company. Usual punch holes for these.