It would be of great help if you could post some photographs too please Steve.
Apart from overall appearance, of particular interest would be being able to determine which type of cartridge this particular variant was intended for.
Very early Marushin UZIs were intended for Open Cartridges (no longer available), later versions used Marushin's 9mm PFC type cartridge
Taking a photo of the chamber would show the type of Detonator Pin your UZI has fitted.
Would you have any of its cartridges left by any chance?
Thank you
_________________
Cerwyn
Hobby collector of Replica model guns and Militaria.
also member of Living History Reenactment Groups.