Uzi Mod B help and identification

[RT Hand LF Eye]

Hello. I'm new to this community and to owning machine guns. I am looking for some help in understanding this uzi. There are markings in Hebrew and I was able to find some details online. I like to learn as much as I can about this beauty. It's not for sale, so please don't try and ask to buy it. I'm not here for that. I would like some opinions on it's value. Does anyone has info on a reputable appraisal company/person?
It is a full auto. Registered/stamped and transferrable. Thank you very much in advance. Any thoughts and comments are welcomed.

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