Keen Kutter Korn Razor

My grandfather recently died at the age of 98 and he is now with grandma in which were married for 71 years. They played an important part of my life and I was able to hear so many great stories from back in the days. They both grew up in South Dakota, were very poor, went through the depression, but grandpa was a stubborn determined man and both of them succeeded in life. He was a a professor of history and grams was a kindergarten teacher.

So grandma loved trinkets and I happened to find this in her dresser recently and I fell in love with it. I haven't been able to locate much on this razor. I've seen similar razors, but nothing like this one or the box. I found the manufacturer, Simmons Hardware Co. out of Missouri and I know they made razors from 1868 - 1960 but I am still at a loss as to any other info. I was hoping that maybe you all could help me.

It's 5 1/2 inches long. The above pictures show everything that I could see on the razor. There are no cracks and as far as I know it looks like it is original and never been touched.

Any information would be great. Thank you!