KM sidecap?

[cosmonext]

Hello, i have this dark blue sidecap and i need opinions...
there is inside the cap some kind of brown synthetic band... is this normal in the period? it´s a km sidecap?

[GAMS1]

Synthetic looks plastic,not éersatz". IMO a post war side cap .
Nick

[cosmonext]

Thank you

therefore this type of plastic was only used at post war?

[GAMS1]

It seems to be !better pics would confirm that ...
Nick

[cosmonext]

These are the best pictures I can do with my camera. I hope they are useful.
Sidecap was bought on Niemann a few years ago as an original item.