वीर नांणरे [?] = Name of the artisan Vira Nanare [?]
वास जोधपुर = Native of Jodhpur
जात सुथार = Of the Suthar (carpenter) caste
The language is Hindi/Rajasthani, and the text simply gives the name of the artisan who made this. This carpenter was from Jodhpur and belonged to the Suthar (carpenter) community.
Looks like a hand made gun or pistol from Rajasthan.