Yes, it's a beautiful German razor. Here's some info:
Bontgen & Sabin AG Stahlwarenfabrik
The company existed 1870 -1983. Registered 22nd December 1876. Located Solingen, Mittelstrasse 13 since 1935 and on, renamed in Elsa-Brandstrom-Strasse 13-15, with 1939 till 1970. The factory was founded in August, 1870th by Walter Bontgen and Louis Sabin. In 1900 the factory is present at lists of associations of manufacturers of knifes, metal products, straight razors, scissors and souvenirs, Patent Taschenmesser and Priniessinscheren was granted to it.