I once owned a very similar example, yours has more stamps on it though.
My suhl carbine, also inlaid with bone plaques was made for the saxony market or even the Polish nobility. I would date this carbine to 1640-1650s.
I couldn't find the date of 1592 on the barrel in your pictures. The lettering ISE (?) is most likely what you meant?
The pin holding the trigger could be a replacement.
Still a nice gun on its own right.