Suspender/Pants/Trouser Buttons

I have mentioned “Best Ring Edge” and “Double Ring Edge” buttons previously, now I have been sent an image of a “Solid Ring Edge” button found at Sandy Creek, Victoria, close to the Hume Dam. Gold was discovered there in 1854, with tin and gold dredging continuing until 1918. It is now a small town (pop. 167 in 2016) in a rural area.