Australia. Victoria, 1837-1901. Adelaide Exhibition, Silver Medallet, 1887. Pierced For Suspension. 21mm.
 
The Adelaide International Jubilee Exhibition of 1887 was a celebration of the 50th anniversary of Queen Victoria's accession to the throne on 20 June 1837, held in Adelaide, South Australia in 1887. It was also a celebration of the 50th anniversary of the Proclamation of South Australia which occurred around six months earlier, on 28 December 1886.