As stated before, it is marked Antoine Courtois, etc. Also marked; Made in France - 6859 - Sole America Importers - LEBLANC - U.S.A. The case is leather; label - Selmer - Reg. Office Check musictrader.com It lists the brand names manufactured or marketed by the Leblanc Corp. Among them is Courtois. They have some serial number lists. Colt official police serial numbers. Modern Italian Side Action Rotary Valve Trumpet. Tone, serial number 254752, low pitch, gold finish, with later case. French Cornet, Antoine Courtois, c. Patch for microsoft office 2016 mac. Exact dating of Courtois instruments is impossible, but my guess is that this trumpet was manufactured soon after Selmer 's initial involvement.The second valve casing shows the number 680 which I take to be the model number. The instrument features a device for changing the pitch of the trumpet from Bb to A.
Antoine Courtois Trumpet Serial Numbers 1
Antoine Courtois Trumpets
I was recently making a list, I made a sequential list of the medals and assume they are stamping the latest in the series when a horn is made for the best marketing (well, within a year or so they would). I only looked at the early horns as that is my main interest.Medal dates in sequence: 1862 1867 1872 1878 1889 1893 1900 1904 1910 1911 (some may be skipped)
Serial# -- most recent stamp present and oldest stamp missing to bracket
200 -- after 1900 before 1904
680 -- after 1904 before 1911
1250 -- after 1904 before 1911
1450 -- after 1904 before 1911
I think these were all either on eBay recently, or Horn-u-Copia, so you may have found them already. I rounded them to nearest 10. These are all Besson-style markings on the middle valve, the rotary valve clusters seem to be independently stamped with different numbers (something that is not uncommon to find). Courtois cornets have their own sequence numbers and are under a valve cap, these are all from trumpets.
One reason why I was doing this is it looks to me like people have been dating many of these horns as later than they really are - ? For example your horn I would guess to be somewhere around 1908 based on these numbers. Does it have any later stamps on it? I'd be interested in any list you have. If your horn has a stamp later than 1904 it would be puzzling to me, it would look like they reset the numbers at some point.
I just bought the ~1450 one today, it was on eBay and I am looking forward to checking it out!