A soft shiny mint green..heading towards pistachio with subtle colour variations, characteristic of vintage plastic

The buttons are moulded so that one side dips and then rises - the different depths catching the light - you can see this in the photo.
The other side is carved into a starburst - each vertical segment also having horizontal lines carved across it.
A most satisfying design.
They are 2.2cm in diameter and are from the 1930s .