Historical information
Probably produced for Port Melbourne City Council, for appeal for Mt Mulligan mining disaster. Seventy five workers were killed in the series of explosions at the Mount Mulligan coal mine on the morning of 19 September 1921. There were no survivors. It remains the worst mining disaster in Queensland history and led to the introduction of legislation to improve the safety for miners.
Physical description
Navy blue and gold stickpin 1921: Mount Mulligan Appeal Port Melbourne 1921 (5 copies a-e)