Plain edge is worth more than combo. It Depends on just how used it is and if it has the box as to the price it will bring. There's no way to just say it's a Starmate and used and have anyone tell you an even ballpark figure. I've never seen a Spyderco marked a number out of a number, that's what Benchmade does, Collector numbered Spyderco's just have a number on the blade, B/M will say "pre production 400/1000" for example.