Thank you for this information. Your research is so precise, and presented so directly, that it leaves we with little but praise as a response. I spent last night revisiting our Tulle Lebels, placing the names to the dates, and was rewarded with the recollection of a mystery which remains unresolved in my ignorant mind. If Tulle was responsible for the final assembly of the Mle 1886 M93 R35s, why was the circle "L" omitted from that model?
A favorite rifle with a Tulle marked receiver and MA T1920N marked barrel, but with the Chatellerault prefix of "AE" has the "L" stamp upon the left hand chamber swell. I have assumed this rework was so admirably accomplished at MAT. The question which arises from the R35s is why has the "L" not been present on any of the examples which I have observed? Also, what is the actual significance of the manufacturer's code in the location just above the serial number? In the case of our two remaining carbines that code is "AEG" for "General Electric", I presume? The right side of the barrels are stamped "MAP 1936" and "SACM 1937", (you have them in your notes). Do you know which of these provided the barrels and which barreled the receivers, if they were not one in the same? Was Tulle the actual final assembly facility or was it a final inspection location for subcontractors' assemblages?
Edit: I see that your list is gone. I am glad that I noted the names pertinent to the time-frame of my interest, but next time I shall copy any such list in its entirety. As always, I wish you well.