I seem to remember that someone on garage gazette posted a list of Kraeuter doe wrenches with the "K" in a diamond. These are the wrenches made in the 1920"s. There are three types, the A wrenches are the regular type, the B are S type and the C are thin and called check nut wrenches. I have 14 of the A type, six of the B type and four of the C type. I need a list so I can figure out what I'm missing.
According to Alloy Artifacts http://alloy-artifacts.org/ (http://alloy-artifacts.org/)the Dunham, Carrigan catalog has a list this is taken from that article "The 1925 catalog No. 73 from the Dunham, Carrigan & Hayden Company, a wholesale hardware supplier, <snip> open-end wrenches on pages 226-227. This is one of the few catalog references for Kraeuter wrenches."
Also there may be some info over at Tool Talk https://papawswrench.com/vboard/index.php (https://papawswrench.com/vboard/index.php)