Unknown Firefighter hand tool. Need help identifying.

I have an old and odd hand tool and i'm not sure what it is. It has a rubber stopper of some sort at the end and is spring loaded. Any help or tips would be awesome! It seems to be made out of iron and has a wooden handle. It's roughly 6-7 feet long. Other than that I have no other information on it. The department this piece came from is an old FD from the 1880's.