Lol, honestly this Triomphe is essentially disposable! I got it for cheap due to a mis-labeled auction listing. And I have Victory and Super Record (as well as a few period Shimano and quite a few period SunTour mechs too) in my big box... (Pretty sure I need a twelve-step program....)
And the bike is a knockabout mixte for casual/trail use, a genre that doesn’t really care about sheen....
I will mention how very happy I am to have IRD 7-speed freewheels with modern shifting ramps. This breathes new life into old derailleurs. Units that struggled to shift straight cogs work great with ramped cogs, which means I can indulge my irrational drop-parallelogram fetish without suffering for it!