Prisoner of War Badge? MOPR

[Saladin]

Hello All,
This isn't my badge.
I came across this badge that seemed quite interesting and wondered if anybody knows what it may be?

It measures around 30mm tall.
Made from Brass with red enamel...(damaged) The screw fitting on the back is hollow pressed rather than a solid disc

Design depicts a hand with handcuffs waving a red cloth thrugh a set of prison bars.

Any help appreciated

All the best
Doug

Apolgies about the pictures they are off my phone

[Dom]

Doug ,

МОПР : Международная организация помощи борцам революции / International Organization for Aid to the fighters of the revolution .

[Saladin]

Brilliant Dom,
thank you very much for that information.

Best regards
Doug