Here is a picture of a postcard showing members of the Melbourne Metropolitan Fire brigade:
The M.F.B. dates from 1893 when the various suburban and town brigades were merged into a metropolitan and country brigades. See the three posts starting at http://www.austbuttonhistory.com/29th-september-2021/ for more history. These gentlemen have the same wonderful moustaches as in the 1901 illustration already shared.
For something completely unrelated, a nice Mickey button: