My new black mamba!
The tang says '"The Fisher" for Quality' and Paul Kohl Germany. The blade is 11/16 wide and it is "very hollow". During shaving, it sounds almost like Otto Deutsch and has the texture of old pergamen. It is a great shaver and gave me a smooth BBS this morning.

There is very little information available about these razors. I would be very thankful for any data.

PS: Any tips how to make the blade *darker*?