That little darlin' was made by Schrade for Shapleigh Hardware and it is quite old. I would GUESS the 1920s or 1930s.
Even in its well used condition it is worth something. Not sure just how much but something and you might be surprised. Again, I am guessing but maybe somewhere between $40 and $100. Sometimes eBay allows this size to run so you might do a search there to see if there are any comparable to yours that have sold. I'd search both current sales and then go to advanced search and check under completed sales.
