Were is the evidence or documentation for these assertions? We simply don't know that cmr marked their HKW until 1942. Same for when Appel introduced their flat HKW. Making assumptions without supporting empirical information is not good for the hobby. We have both researched the rg34 for many years and I am confident that you, like I have examined thousands of pieces. These observations certainly helps provides a basis for theory and possible explanations but further research is needed before stating them as fact. I have personally never handled an eoz HKW and at this point am unconvinced one way or the other as far as originality. I feel the same way about making unsupported assumptions on when a certain maker introduced the flat HKW or when the sheet metal oiler was first produced or the twisted wire chain for that matter. Heck, without further evidence I still remain unconvinced that Ky is Aktien-Maschinenfabrik Kyffhäuserhütte ......
I'm sorry but with my affirmations I don't want to seem pretentious or try to convince anyone, for me this is also a hobby and I enjoy doing research on this and other topics. I make my assertions to the best of my knowledge and belief, based largely on a detailed study of numerous
Rg34 examples. For example, my assertion years ago that the letters KH/Ky correspond to
Aktien-Maschinenfabrik Kyffhäuserhütte firm is a conjecture based mainly on a detailed study of numerous parts and equipment, but IMHO I believe that to date, with the information available, it is the most plausible. That more evidence is needed to prove it, yes of course ... that's where we go!
Regarding my claim that the Hawig firm marked their HKWs until 1942, it is also based on the observation and careful study of many 1942 cmr kits, where some show the code on their tools and others do not, so IMHO it is most likely that Hawig stopped stamping his code on their tools that year.
I have not had an eoz HKW in my hands either and I think like you ... more study is needed ! As for the eoz chain from 1942 that appears on my blog, I know its provenance and although I cannot certify its authenticity, after a close study everything indicates that it is.
I recognize that my asseveration that the flat tool was introduced in 1943 and not before is difficult to prove because Gustav Appel did not date his equipment, but looking at the perspective evolution of the
Rg34 manufacture during the war, I do not see Gustav Appel as the leading company in simplifying their manufacture, specially regarding their parts.
Antoni