Thanks guys for the quick reply.
RJay, this is exactly what my dad told me that this gun is way too far gone for restoration. But I agree with Hawg Haggen that its not that bad. Thanks 4V50 Gary, and James K for the information. I think this gun was made in one of those crude "factories" in the middle east in time of Ottoman Empire.
James K, this is not a foldable trigger its a broken one
So, I'm sure now that this gun does not have any important historic or collectible value and I think I decided to restore it. I was a goldsmith and I'll consider this a fun project to spend some time in.
I already created the main spring for the hammer and tested to sandpaper the back of the grip and discovered that the pittings are not that deep. I think there are other 3 springs to be made today I'll create wooden grip covers to test the hammer spring.