the pictures of the tool are dark, hard to make out any defining characteristics of the tool, also could you put up a picture of the back part on tool.It makes me think of a tire repair tool for punctures just can't tell.
Interesting tool.
I found no match in a brief search.
The one end having a lug on it hinted of a bobbin holder ,but no wear from it riding on the handle.
The diameter looks bigger than most sewing awls and makes me think of a burlap bag closer.
Most awls for sewing have one hole through them , so why two?
Dog food bags have a pull strip where one string gets pulled out of the other...I don't know how the stitching goes...
One picture showed a burlap stitcher with a rod through handle that looked a little like a Yankee screwdriver.
To use the o.p.' s tool like an awl would not work well with the rod sticking out of the handle on the palm side.
?