You can clean them up Gino if you follow Singin's 6 easy steps.
1. Have an old knife you want to clean.
2. Buy a Rust Eraser from Orvet to get the rust off blades and bolsters.
3. Buy Birchwood Casey Gun Scrubber and spray it in the knife.
4. Buy some Compressed Air and spray it in the knife.
5. Depending on how serious you want to get with this step, buy some micron papers for polishing bolsters, blades and most handle materials. (yes, even celluloid shells, I did).
Or you can just buy a pack of Cape Cod Cloths for about 5 bucks. Either way micron papers or CCCs are about the same in price.
6. Buy some Quick Release Oil for the finishing snaps and for lubrication of joints.
Remember after each step use the compressed air to clean the knife before moving on.
