It would be an 807 or 808 with what Schrade Walden called Marine Pearl. It is a nice imitation simulated pearl, celluloid or similar. I can't fine it in the catalogs with those handles and the three blades. Does it have milled liners? They also made them with rough black, bone stag, yellow celluloid, and stratawood handles too. The rough black they called "stagged" was simply called "Number 8" in the 1947. Same pattern as the Uncle Henry 807UH and Old Timer 108OT. Probably a 50's or 60's knife.