Date of Issue (number 11): 19 Secundus 10525 (24/02/2006)
Denomination: 0.50 centi
Size (printed area): 41 x 30 mm
Paper: white, gummed
Perforation: 11
Production: 150 sheets of 20 (ONLY 3000 STAMPS ISSUED)
Printer: Adler Print, Berlin, Germany
From Wikipedia: The Empire of Atlantium is a micronation and secular, pluralist progressive lobby group based in New South Wales, Australia.
Micronations: The Lonely Planet Guide to Home-Made Nations described Atlantium in 2006 as "a refreshing antidote to the reactionary self-aggrandisement of so many micronations", and "an extremely sophisticated nation-state experiment, as well as an entirely serious claimant to legitimate statehood". The book's entry on Atlantium notes its espousal of "progressive, liberal policies" and characterises it as a "secular humanist utopia".
Among the causes Atlantium supports are the right to unrestricted international freedom of movement, the right to abortion, the right to assisted suicide and decimal calendar reform.
In 2015, the micronation had almost 3,000 "citizens", most of whom signed up online from over a hundred countries, and have never been to Atlantium.
Stamps, coins and banknotes were sold by Atlantium, which used a decimal currency system of 100 imperial centi to the imperial solidus. Atlantium's website claimed that the profits from those sales are used for "the Empire's ongoing operations" as well as charitable causes.
The earliest documented media report referring to Atlantium is a 1984 philatelic magazine article [Bill Hornadge (September 1984). "Atlantium Empire". Stamp News. p. 196.] about its stamp releases. There were 12 issues of Atlantian stamps.