That is definitely off gassing on that cracked ice Fightin’ Rooster. That is a shame!
Be sure you don’t get that moisture from those knives on anything. It is probably highly acidic. If it gets on another knife it could damage the steel or even destabilize another celluloid handle and start the off gassing process there.
tjmurphy wrote: Hope someone else will tell me I'm wrong, but I think the only hope for the knives is to remove the handles before the frames are destroyed.

I think that's one of those reactions that once it starts, there's no stopping it.
I agree with TJ, getting the handles off is the only way to save the knives.
Here are a couple pics of a Case I repaired for a guy. The gassing had damaged the liners so badly they were cracked. I had to get another knife with bad blades and put the blades from this knife into the frame of the donor knife.
As beautiful as celluloid can be I have very few in my collection and these mostly have historical significance and those lay out in the open air.
Dale
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