I used to have one just like that. No formal training and one of my first dogs, just naturally steady and biddable, retrieved too. I should probably have bred that bitch but I reckon it's something of an anomaly, hard to reproduce, and I moved towards cockers anyway.
The terrier I have now is worlds apart. Totally single minded and ignorant. He has one job and he does it well but I do miss that old bitch.