This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
inchDcutaway. This is cutaway drawing of inch Coast Artillery gun on an disappearing carriage The drawing is cluttered but one can make out the position of the gun when raised into firing position in battery vs when retracted behind the parapet and ready to be swabbed out and reloaded The curved line running between the muzzles in