A misnomer if there ever was one. Wasn't a demo knife. The thing is all steel.
Purportedly it stands for "demolition", as in the tools of engineers who dealt with demolition and explosives. I think that's an old soldier's tale, however, since the knife was in such wide use throughout the services. Of course, over the years, sometimes the tales become the "truth".

They sure are built like tanks. I have three intact Camilluses from 1974 through 2003 in my collection as well as a Queen from '86, an Imperial likely from the '80s, a Kingston (?) possibly from the '70s with the "U.S. MARINE CORPS" stamping instead of just "U.S.", and a MIB Ontario that is probably no older than 2000 or so. My main user is the 2003 Camillus, shaving sharp and tools in perfect condition. I believe they are all stainless except for the springs on the Kingston, which have patinated rather nicely.
Now I'm inspired to go round 'em up and take some pics once I get home today.
