Lovely old items!
Personally, I love the old knives, but I am sorry to use them.
So I use the new

I also noticed that the sheath absorb water,
If the rain falls or spray.
I bought grangers g-wax and rubbed sheath,
heat of fire - wax absorbed. I repeated this 3 times.
(A bit of wax can be seen inside the button)
Interestingly, someone here else to do so and what kind wax use?