I bought a lot of 5 razors to get two of them. I'm thinking about selling two of the others and would like to find some background on them.

The first is stamped Walter Kesemeyer Solingen-Wald Germany on one side. The other side says WEKA Solingen.

The second razor is stamped 110 F. Schaaf & Co. Solingen on one side and Importe D'Allmagne on the other.

Can anyone help me with the history of either manufacturer?