Flintlock Pistol

I am currently working for Molotov Games. This is an asset for one of my projects. I was really trying to learn Physical based rendering with this asset.
The Company that produced this gun was founded By Joseph Deop in Spain. Joseph Deop was a luxury flintlock pistol manufacturer the name engraved into the side of the gun. The makers mark says 'RL' followed by 'Cani Vol 11' Cani is a abbreviation for the person that made this gun. This gun compared to Joseph Deop's other guns, comparatively it's kind of a Frankenstein. With coins melted and hammered in key areas. The design seems to be all over the place. I personally feel like this pistol was a test of sorts. It seemed like they where experimenting with different ideas.