Australia - International: OTC.
International delivery envelope: IAO-EO-1.

General characteristics:

Heading and notes: No form number.
Heading is INTERNATIONAL TELEGRAM in two lines.
Message area: Blank.
Reverse side: Name, logo and information.
Colours (text & envelope): Blue on cream.
Size of envelope overall: 91 × 165 mm.
Distinctive characteristics of this form:

Used in Melbourne - probably on 17 September 1950 with OTC delivery form IAO-DO-1B.

IAO-EO-1 rev IAO-EO-1 (reverse).

Reverse side of th above delivery envelope showing the logo and the information about the OTC Offices in Sydney and Melbourne.

Details of use and rarity.

Schedule number Earliest recorded date Rarity rating
EO-1 None 3 November 1947 at ??. R