If, as if some have speculated, all the original WW2 Raider Stiletto handles are indeed “time-bombs” destined to disintegrate, then I believe that actions can and should be taken to delay the inevitable as long as possible. However, even if this deterioration progresses beyond the point of no return, the original blades can be mated with recast handles formulated from the remaining original purified zinc pieces within a corrected pewter formulation to prevent future cracking/ion leaching. Will these reconstructed rescues be as valuable as before? I don’t have a clue. But I can say for certain that the alternative is not acceptable and that no self-respecting Marine would stand idly by and let these knives quietly disappear into oblivion.
We have already confirmed through various threads throughout this forum that molds made from pristine original USMC Raider stiletto handles still exist and could be commissioned for the purpose of rescuing these intriguing knives. As intact originals become more and more scarce, dedicated individuals (mostly Marines such as myself) will certainly seek out and clean up the original blades with the intent of rescuing these relics. Camillus actually already did this to a degree when it found the barrel of surplus blades! It stands to reason that veterans and enthusiasts like me should do what is necessary to ensure enough un-rusted original blades survive to enable such future efforts to succeed.
I do not pretend to be a prognosticator or an expert. I am just getting ahead of the power curve by seeking to responsibly clean up and preserve the rusted blade of a currently intact example of a historical knife. As such, any help in identifying the most appropriate blade preservation techniques will be greatly appreciated.