Looks very much the same as my 19-4 (1978). Only difference noticed was possibly one more visible coil in the rebound spring, but could be the angle of the image.
LOL! Yvonnes the one who had to run over to the range today. I had to leave the range for 20 minutes on Thursday (cash deal), and she ran through 8 CZ 75 magazines, and then used her mag of hollow points. As we were walking to the car, she told me her hand was a little sore from Thursday, so she planned to watch me shoot the M19. Well, I watched her! 🤣
Sounds like you have a KEEPER!!
BTW, I like the M19 too