Here is a Cut Steel button which has the steels graduating around the edge from small to large and one large one in the centre. It has brass filigree work in between making up a rather nice button. It has a brass loop shank and measures 3 cm.
These Paste buttons were bought new in China in 2013. They were part of a button collection which I bought a few years ago. I am not a glitzy person so would not have bought them otherwise but they add to my collection anyway.