I'm new to straight razor shaving, wanting to trim my recently acquired Van Dyke. I have a Pearl King with "First Class, Original Solingen" on the blade, that I don't remember where I got it, and my father's Bismark. The razor has "Bismark Registered" in silver inlay on what appears to be faux ivory plastic or celluloid scales. One side of the tang is stamped "Bismarck" and the other side of the tang is stamped "Made in Germany Soligen". He had it since after WWII. I see Bismarck model Dovo's, but can't find any info on Bismarck brand razors.