Darwin Ltd was founded in 1926. It was established by Paul R. Kuehnrich to manufacture razor blades and safety razors using his patented cobalt steel. It was relatively short lived and probably closed the doors in the very late 1930's/early 1940's.
We don't know much more than this and if anyone has more info, please contact me so that I can update this page.

They did make an adjustable SE razor with a wedge blade, but to the best of my knowledge, they only made the two adjustables DE razors - the Popular and the Standard. Click on the image or the description to take you to the page.

Darwin Popular	Darwin Standard