6 Bright Blue 2.7cm, 2.2cm, 1.8cm or 1.5cm WW2 Propeller Shaped Buttons

Either a substantial 2.7cm wide, a slightly more subtle 2.2cm, a confident 1.8cm or a positively demure 1.5cm, these vintage 1940s buttons are a happy blue colour.
They were made in French Canada in the 1940s in the shape of propellers - so the population could show their support for the war effort by sewing them onto the clothes they made.

They are made of casein plastic and I'm selling them in lots of 5, 6 or 9.
I also have them in several other colours and sizes