Guam Guard Mail, Third and Fourth Issues.
Over 50 covers on pages with a fair amount of useful information, including Nos. M5-M6 Third Issue and M7-M11 Fourth Issue, nice range of towns, nearly all double-circle types but including 14 three-line Inarajan and Merizo, singles, blocks of four, three "set" covers of the Fourth Issue, First and Last days and couple Commercial uses, also First day of U.S. Mail (Jan. 1, 1931), First Air Mail Over Guam by Navy Amphibian airplane, Pan American Airways survey flights, 1939 cover from Guam to a Marine Sgt. in Shanghai with attractive cachets for Midway and Wake Islands which were refueling stops for the trip from Guam to Hawaii, Aug. 1, 1944 censored cover mailed from Guam from APO77 (first one used during re-capture of Guam) and mailed during heavy fighting with Japanese resistance (full American occupation was on Aug. 10, 1944), also APO's 953 and the short-lived and very scarce 1057, Fine-Very Fine, a fabulous collection of this interesting and scarce material, certainly the largest and most comprehensive we have ever seen, ex Whitpain
Power Search for Comparables