Indochinese Machine Free Franks

Little is known about the Indochinese machine free franks. The International Postage Meter Stamp Catalogue list free franks for Vietnam but not forIndochina. So, it is not clear to the editor when the machines were first used in Indochina

Here is a rare proof strike of the Satas C machine that was later on also used in the State of Vietnam.

International air mail letter sent from Saigon to Switzerland in December of 1948 franked with 5.90P using the Satas C franking machine.

International air mail letter sent from Saigon to Switzerland in September of 1950 franked with 6.80P using the Satas C franking machine. Swiss arrival cancel on front.