Metropolis 90 – Pre Stamped Envelope Australia 1990
The Third Congress of World Association of Major Metropolises was held in Melbourne from 15 to 19 Oct 1990. It was attended by Political,administrative and technical leaders of Cities around the World with a Population of at least one million. The agenda was to promote co-operation in addressing common problems and challenges facing large urban centres.
Australia Post brought out a 43c Pre Stamped envelope (PSE)on 15 Oct 1990 to mark this event METROPOLIS 90. PSE no 187.