I will tell you to be careful what you wish for. Yes early leather soled shoes are pretty slippery in certain terrain, but adding hobnails will only change where they are slippery. I made a pair of early style shoes from an old pair of “Earth Shoes” by having the reverse angle sole removed, and having a leather sole and heal added. The were very slippery in many outdoor activities so I bought a box of shoe nails from the shoe repair guy, and hobnailed the heels in a traditional pattern. They were great outdoors, not only did it stop the slipping, it helped keep the heals from mashing out, and spreading when the leather got damp. I later wore them to two indoor activities, one was a living history presentation at a school, and the other was a similar presentation at our local museum, on linoleum floors the hobnailed heel were like being on ice, and similar problems arose when I wore them to an outdoor even that was on a polished cement patio. So be aware hobnails aren’t the universal fix.
Hungry Horse