The first example is either a fashion button modeled after RAAF uniform buttons, or a shirt button for clerical staff? It is only 7mm in diametre and a pretty pink!
This is a ‘Staybrite’ (anodised aluminium) Royal Australian Air Force button by Stokes & Sons Melbourne, dating 1953-1962.
This is probably a later version, as it has at the back dark blue plastic liner, with no maker’s mark. Nichols Industries made uniform buttons lined with plastic dating after 1970. Perhaps this is one of theirs?
For all comments and queries, please use the Contact page.