🔎 UNIDENTIFIED help IDing wartime (?) relic

[jrh4]

Hey gang! I recently acquired this strange metal tubular tool that looks like maybe a WWI/II relic. Google AI keeps telling me it might be a oil tool for a machine gun, but those have a little spoon and this one has a thicker metal insert like a knife sharpener or something. It's very heavy, well-constructed brass and steel. I can't seem to find anything comparable though, so I was hoping someone on here might be able to clue me in. I'm attaching some pics. Thanks in advance!

 

[ncsuwolf]

Is the rod steel or ceramic? Looks like a really fancy sharpening steel, although I don’t know why someone would make one this “well”. Are there any markings anywhere?

 

[jrh4]

Is the rod steel or ceramic? Looks like a really fancy sharpening steel, although I don’t know why someone would make one this “well”. Are there any markings anywhere?

I know, it's really solid and well-made. The rod is metal/steel. If it is a sharpening tool, it's a petty high grit because it's very smooth too. There are zero markings anywhere, which adds to the mystery.

 

[ncsuwolf]

Can you take a close up pic of where the rod goes into the handle?

Or can you stick a magnet to the rod to see if it sticks?

 

[ticndig]

ferro rod ? see if it will spark.