793, C19, C21, FAM14 1937 Airmail Route Extension to Macau and Hong FFC (F14-12a), franked with 4¢ Navy, 6¢ and 20¢ Airmail, postmark circular date stamp "GUAM/APR/27/5AM/1937/GUAM", neat typed address. Flight F14-21a (AAMC) Guam to Macau with First Flight cachet F14c and an additional cachet "runner" at bottom (designer unknown), reverse with hexagon receiving postmark "CORREOS & TELGRAFOS/ESATCAO/CENTRAL/28-N-37.12/MACAU". Cover in very good condition with slight left edge toning and some on reverse along with light pencil note. Edges and corners still very sharp (Image)

$30

C21-22, FAM 14, 1937 Airmail Route Extension to Macau and Hong Kong FFC (F14-10a), franked with 20¢ and 50¢ Trans-Pacific Issue postmarked circular date stamp "SAN FRANCISCO/APR/21/1PM/1937/CALIF.", neat typed address and instructions, and Air Mail etiquette sticker, has First Flight cachet Type F14c (AAMC) and additional cachet "runner" at bottom (designer unknown), reverse has Receiving postmark hexagon "CORREOS & TELEGRAFOS/ESTACAO/CENTRAL/28-N-37.17/MACAU", cover in very good condition with pencil note on front and very tiny corner creases (Image)

$30