1940s French Soft Grey 4.5cm Buckle

An  soft grey colour  - like a baby rabbits fur.
The surface is marbled, characteristic of this kind of vintage casein plastic - each buckle is a little different.
4.5cm tall, and 4cm wide, gently curved for a perfect fit on your belt.
The inside aperture is just over 4cm tall.
I found these in an old haberdashery warehouse -they are in excellent unused condition.