I'm relatively new to the M1917 and am looking for one with all original markings as it was originally issued. Stopped at a local gun shop today and looked at the 4 they had on hand. All seemed to be mix masters with at least one part not original to the rifle. My question is: Did each mfg mark their rifles in different places? I saw a bolt that did not seem to have any r w or e stamps, a safety marked with an e on an Eddystone with other safetys not marked at all, no marks on barrel bands etc. It appears to my untrained eye that there was no uniform system of marking common to all manufacturers. Am I correct? If so did each mfg have a uniform marking system within their own production line? If they did, is there any source which I can access that will tell me where I should look for markings on the different manufacturers rifles, eg on Eddystone look for an e stamped on x y & z parts but on Winchester only expect to see a w on y & z with x being blank? Thanks so much in advance for your help. RB