This Queensland Volunteers button probably dates pre 1885. In 1884 a Defence Act was passed in parliament, and new uniforms were designed. The button came from an estate in Ipswich, Queensland, which helps identify it; the design being similar to other colonial VR uniform buttons. See also Cossum page 23.
Guildford Rifle Volunteers
The Guilford Volunteers commenced in 1873 and by January 1874 had 2 officers and 40 other ranks. At its maximum in 11890 it had 6 officers and 114 other ranks. It became E Company of the new First Infantry regiment.
Australian National Line
The British firm of Miller & Sons, (tailors specialising in marine and other uniforms from 1818) became Miller, Rayner & Haysom Ltd in 1912. They supplied officers uniforms to shipping companies such as the White Star Line. The’rope’ border around this button indicates it was for naval officer.
Victorian Artillery Staff
A similar button to this is seen on Cossum page 16. There is no suggested date, but it does have a Queen Victoria Crown (i.e. pre 1902).