Its a part from an early car. I found two of them in an old park and they had writing on them. I googled the writing it and it was a part from a car from 1919 but I don't remember which part. Maybe the valve cover or tire valve stem cover as indicated above by Ironspike. I originally thought they were handles from the old multi-bit screwdrivers.
Is the other end open or solid? Is there threads in the open end that is showing in the pic? I have an aftermarket ramrod that goes to my black powder hunting rifle. The end that protrudes out by the barrel tip has a threaded tip, and several cleaning jags cam with it that will screw on when the tip is removed. Just thought maybe that's what it was, but need to see several views to really tell. Monty