1966 Bhutan #54 – 55 Centenary of the ITU

1966 Bhutan Scott catalogue numbers 54 – 55 Centenary of the ITU. Imperf Souvenir Sheet of 2 containing numbers 54 – 55. 54 ITU, Centenary, Telstar, Morse Key and ITU Emblem & 55 ITU, Centenary, Syncom, Ear Phones and ITU Emblem.