This is the one that started it all. In World Ward II, the popularity of Randall Made Knives too off, due to the popularity of this model among American GIs.
Randall describes this is a Fighting Knife, but it’s more of an all-purpose knife than that. It features a high-carbon stainless steel blade available in five, six, seven, or eight inches. The top edge is sharpened as well, though only about half way down the length of the blade.
The Model 1 is the leftmost knife picture at right, labeled ‘A’. The hilt extends on both sides of the knife and is made of brass. The handle is available in a straight, smooth grip, or as pictured at right.
I’m assuming you know about Randall Made Knives, but if not, you can read more here, here, or here.