An exciting new find.
Possibly Australian, sold by G.Herring. Very cute and dated from 1936:
19th September 1936.
New finds:
Beutron:
The design with the 4 examples (in grey,cream and green) was called basketweave.
Beauclaire:
Coronet:
The yellow is very worn, but can be identified as the RAAF inspired fashion button seen also in grey and white. See http://www.ausbuttonhistory.com/?p=8009
From Wikimedia:
so jealous of the fish and all your other finds of course. but keep it up.