Congrats on your new Courtois! 10XXX puts it around 1960. 164XX is around 1970. I don't have any Courtois in that period but the Leblanc horns were made by Courtois and share serials and I have a 707 in the 13XXX range which is a very nice horn. The best deals out there, too -- a Leblanc by Courtois went last week for about $250 on eBay.
Best posts made by scottfsmith
RE: Courtois Balanced Model...
RE: How many of you taught yourself to play?
I taught myself trumpet, I started maybe four years ago after teaching myself trombone a few years before that so I could play along with my son. After a couple years I stopped getting better, I couldn’t play much above the staff, so I started taking lessons. I would still be a pretty mediocre player if I didn’t make that step.
I was also doing odd things like naming the notes in concert pitch, so for example what all Bb trumpeters call G I would call F. It took me a long time to un-learn that bad habit..