Air Mail stamp of 1974 surcharged in black Bs. 3.80 on $b 3.80. Previous value overprinted with wavy lines.
TAM - Transporte Aéreo Militar (the Bolivian Military Airline) is an airline based in La Paz, Bolivia. It is the civilian wing of the 'Fuerza Aérea Boliviana' (the Bolivian Air Force), operating passenger services to remote towns and communities in the North and Northeast of Bolivia. TAM has been a part of the FAB since 1945 up to Dec. 2016.