@spokewrench. I took one head like on the right and squared the face. I removed the backside burrs. I honed it, finishing with buffing compound to strop it like a barber's razor. I then brass wire brushed and buffed it all rust free, smooth, gleaming silver, and painted it black, then added a California framing handle. It was perfect for oak kindling. It could shave hair off the back of your arm. Sometime I will tell of the sheep shearing shed in NZ, the giant tree, and the station owner who almost dislocated his shoulder.
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It could shave hair off the back of your arm.
Grandfather had a straight razor and a strop. He didn't use the tools in the photo to shave his arms.
Here's another hint. My uncle also had a straight razor and a strop, but he never had mules. About the time Grandfather retired, I saw one of my uncle's Poppin Johnnies set up in a way that obviated tools like the ones pictured.
One more hint. The railroad didn't come to this area until about 1875.
 
Not a tool, but tool adjacent: A smart guy who worked for a cabling vendor I used once advised me that when you open a bag of zip ties, you always make the cut in the center of the bag and perpendicular to the zip ties. This prevents them from falling out.

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Once opened, I store my zip ties in short pieces of PVC pipe. Easy to organize and convenient to grab when needed.

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