Australia Post 75th Anniversary of Amateur Radio, The Wireless Institute of Australia

AUSTRALIA POST in 1985 issued a first day cover of a printed stamp and cachet on stamped envelope marking the 75th anniversary of Amateur Radio, The Wireless Institute of Australia (WIA), 1910. Interestingly, it is a print, not a traditional stamp per se. An Australian amateur radio operator gifted this particular FDC to me knowing I am collector of  radio related stamps.