ST. LUCIA TO CANAL ZONE 1906 LETTER, #43, ½p violet & green Edward VII in pair toed by Castries d.s. on small June, 1906 letter to Pedro Miguel, Canal Zone, auxiliary cancels incl. "Postage Due '6' Cts.", "ADVERTISED" and "Unclaimed", also Pedro Miguel d.s. on front, transit and arival backstamps on back, fine-very fine, scarce destination usage (Image)

$75