I’m not sure that I’ve seen a Robeson in that style for before. I can’t say that it’s not one for sure, but I don’t think it is. It’s not a faux frameback either. It’s a shoulderless blade with a traditional grind. As for the chip and the nick in the edge. If it’s shavinng comfortably, and it’s not scratching your strop, go for it. Of course you will want to address both issues eventually.