Here are a few before and after shots of some old pruners I bought from a forum member.
This first one is an old IXL George Wostenholm. The old ebony handle was gorgeous and the blade was solid, with a great fit and finish. The blade was badly sharpened, however, and I decided to modify it into a big sheepsfoot and clean it up really nice. It is a super sweet knife now.
Before:
After:
The next one is an old (circa 1930's) Camillus Cut Co. ebony handled pruner. This one was in very sad shape. The blade was very badly sharpened and out of shape, and would not close all the way, and the spring was essentially useless. It did, however, have a very solid and old solid ebony handle on it, and I decided that it would make a nice Swayback jack. I had to take the whole knife apart, and everything on the knife not make of ebony was steel, and badly rusted. I decided to make a new set of liners and bolsters, using the old liner as a pattern, and drilling the pivot hole a little lower in order to flex the spring a bit more, making it lock up the blade properly. I had to modify the spring and liners a bit, and did a lot of grinding to salvage what I could of the old blade, and ended up with a super sweet knife with very nice old ebony handles.
Before:
After:
Neither knife is perfect, but definitely useable for at least another few lifetimes with a minimum of care.