All About Pocket Knives

According to Mike Silvey's book the bone handled utility knives marked Made in USA are WWII vintage.What about this one that has black plastic handles?Post war?The plastic has shrunk a lot over the years.

If I'm not mistaken, I believe that style of can opener pretty much became obsolete in 1945. That isn't to say no one used that style after that, but I doubt it dates to too much later than that.

It is war time production, there was a shortage of bone during the war years and plastic was used.

Also as Elbertson mentioned, they switched to the safety style opener in 1946

I have one of these that has bone on one side and black plastic on the other side, it came this way and was not replaced. I guess they used up every last piece of bone before they switched to plastic

Thanks folks.Then I guess these would be WWII production also?They have plastic handles.I have several that have bone scales.Blades marked Imperial.