Welcome to the forum, WF1.
I missed your post.
I know precious little about these weapons, so will wait for more knowlegable members to comment. However, I can suggest you take a look at the new book
Arms and Armor from Iran by Manouchehr Moshtag Khorasani, as he discusses these weapons in detail.
We don't provide public appraisals or valuations, but members are welcome to contact you directly via email or PM.
Best,
Andrew