Thread: koken barber's supply co. Improved telephone

can anyone tell me any information on a razor i just picked up. One side reads "made in Germany" and its reverse reads "improved telephone~" and below that in script reads "Koken Barbers Supply Co."
Looked every where Google took me to and no information at all.
Figured someone here would have to know.
I collect razors and have over 200 vintage and antique razors and several are koken but none as this one is.

https://www.patentearth.com/blog/the...er-chairs.html