Is that a silver handle? No stamp on the blade that could mean it is custom or maybe just old/older. It could be an antique.
You might be better off posting the pic to groups for shaving with straight or 'cut throat' razors. There are even a number of online stores who sell straight razors and specialty shaving products who you could send the picture to see if they could identify it even if they don't currently carry it.
- TGM