It is an Imperial Schrade that I found in my step-dad's workshop about fifteen years ago. Scales were missing on one side so I rescaled that side and left the original alone on the other side. Takes a nice edge and is useful for everything from opening mail to light gardening work.
today i carried my rough rider small whittler with amber jig bone scales. rough rider makes a good knife for the price. sharp out of the box good fit and finish and if you lose it to the lake while cutting your fishing line it don't cost much to replace it.