First Antique Razor

I have been driving past a certain antique store for about six years now, thinking that there wasn't really even a chance they might have straight razors; well, today I decided I would pull in and have a quick look, and much to my surprise they had about four or five.

I picked up a German straight for about 19 bucks. No rust, no pitting, and undamaged scales (they are a bit loose). I am not familiar with the brand however, and I was hoping that one of you gentlemen may be able to tell me a little about it. The stamp on the tang reads as follows: 100 WILH. VITTUR HAMBURG GOLDENE MEDAILLE. Thanks in advance.