Found this on a hunt yesterday. Not sure of the date, but I believe it may be early 1900's; the knives were first produced in 1870. Any insight into the age would be appreciated. It's in horrible condition, so it won't be worth anything, but I thought it was a cool find nonetheless. There is a peep-hole on the knife, but I see nothing but a blurry mess when I look through the viewer. I didn't expect the image would have survived anyway.