1966-12-21: Agricultural Reform, 12th Anniv.

1966-12-21: Definitives of 1966: Surcharges

1966-12-21: Red Cross, Cent.

1966-12-21: Honouring Gral. Juana Azurduy de Padilla

1966-12-21: Tupiza City, Cent.

1966-12-21: Coronilla Heroines, 150th Anniv.

1966-12-21: Anthem of La Paz, Cent.

1966-12-21: Cochabamba Philatelic Center, Anniv.

1966-12-21: Pando Department, 25th Anniv.

1966-12-15: Chaco Peace Treaty, 25th Anniv.

1966-12-15: Bolivian Automobile Club, 25th Anniv.