quadrant for Type 45 15cm cannon from former 
japanese army.
at the time of the war.

The Type 45 15 cm cannon is a heavy artillery
 designed and developed by the 
Imperial Japanese Army from the end 
of the Meiji era to the beginning of the Taisho era.

There are scratches and dirt over time, but considering the time since it was made, I think it is a beautiful person.