I picked a couple of vintage strops at a flea market about a week ago. Are they ok to use? If they are, do I need to do anything to them?
Wipe it down with a damp rag. Not to hard at first until you know how dry it is. If it dries fast, wipe it down again but before it completely dries apply a few drops of neetsfoot oil or something of the like(I use leather therepy) on the palm of your hands or a cloth(your choice). Let it obsorb a day or two and see where you are it might be good or you may need to add a little more. Take it slow and do not rush to add more oil.
Less oil is best. Keep in mind that you can always use more, but you can never go back to using less.