PMG Telecom warning sign in enamel
measurements in pics
The Postmaster-General's Department was created in 1901 to take over all postal and telegraphy services in Australia from the states and administer them on a national basis. The Department was administered by the Postmaster-General.
The first permanent Secretary of the Department was Sir Robert Townley Scott who held office from 1 July 1901 until his retirement on 31 December 1910.
In its first 25 years, the department grew from 6,000 to 10,000 offices and from 18,000 to 47,000 staff.[2] Earnings grew from £2.4 million to £10 million per annum.[2]
In mid-1975 the department was disaggregated into the Australian Telecommunications Commission (trading as Telecom Australia) and the Australian Postal Commission (trading as Australia Post). In 1993 the Spectrum Management Agency was formed to take responsibility of radio and television broadcast licensing, which was then merged into the Australian Communications Authority, that later became the Australian Communications and Media Authority. Telecom Australia changed its name to Telstra in 1995 and has since been privatised.
Thanks to Wkipedia for the blurb