Support BladeForums! Paid memberships don't see ads! A member here, Sonnydaze, (Don), was generous enough to gift me 2 Camillus folders that looked to be in need of some tlc. When I clean the first thing I try is some type of non abrasive cleaner like bon-a-mi or comet. These work very well without scratching the metal or plastic. A form of nondestructive cleaning. Here were the two knives before. A 1977 Camillus 17B Bird Knife with a pewter duck in profile in and a ‘77 Camillus 10C running deer both in sculpted pewter and both part of the Wildlife series by Sid Bell. I also notice they were stainless blades. much easier to clean and what was probably on it wasn’t rust. . Non abrasive cleanser works great, a little elbow grease and with some luck the blade etch will be intact. Usually I try som oil first to lift off the rust, all I had was olive oil . .It did the job and the comet finished it up knicely . Make a paste and scrub. The non abrasive cleanser won’t scratch the blade or remove the etchings. Now the bird knife. I used a Brillo pad on the back springs and I was done.