World War II Army Knife

Description

I know very little about this knife.  It was a part of my grandfather's possessions from his WWII service.  Someone told me that it was made from a bayonet but when I compared it to others that wasn't obvious to me.  The knife is sharp and substantial.  The leather case is in excellent condition.  It does look similar to other knives during that period but I really do not know more.  Feel free to ask questions but I'm not sure what else I could tell you.  Thanks for your consideration.  Jim