Yes. Top logo is Simson, with the N the date code for 1927. Second and third are Walther. Last one is Haenel. It's not clear if Walther actually finished these marked with their code, but the code suggest they made the magazine bodies. I'm certain that there was a consortium of makers in the Suhl area that shared contracts for the military, many made components for Sauer K98k rifles. I covered these markings here on the forum (and in our early Karabiner 98k book), I'll try to find that posting.