I have never seen the “Mercedes” mark that you pictured. I believe it to be an inspector’s personal mark. Years ago when I was researching for my book, I had asked Mr. Callahan, a retired Savage employee, who had all the R&D records, if he would interpret a list of marks that I had recorded. He just said they were inspector’s marks and would not help me on that subject. I agree with you that it is a 2nd Model Utica. For those who have not read my book, these two designations of 1st and 2nd Model Utica are in no way factory designations. I made them to easily distinguish between the two models rather than saying “the gun has a steel, gracefully curved and tapered to the rear trigger guard with a slim trigger”, or “the gun has a slim trigger with a black painted alloy trigger guard”. As to dating, these early models had no dating symbols or dates stamped on them. One source said the alloy guard did not appear until 1940, but I saw a picture of a 2nd Model Utica that the owner said his father purchased in 1939. Mr. Callahan said there was an early dating system, but it only lasted a few months. I mention it in my very early books, but later deleted it because it was unreliable. I would say it is safe to say your gun is Pre-War, or made in the early years of the war. I hope this helps some. Let us know how it shoots please! Best wishes, Garnett