It was a Zenith E, with the 58mm f2 lens.
My very first camera had been a Kodak Instamatic that took 126 film cassettes. I had wanted a camera, and that was a birthday present from my parents when I was four (I think). Later my grandmother gave me an old Agfa that used 828 roll-film, and that produced some not bad results - I still have some square slides shot with it.
By the time I was getting into my teens 828 film was getting hard to come by. On a visit to us, my grandmother announced that she thought the local camera shop might have some, and took me there with her. The owner - who was in on it - put on a sorrowful face to explain that they had sold out and would never be able to get any more, at which point my grandmother said that she'd better get me something that used a more readily available film instead. So that was when she bought me the Zenith. It was only later that I discovered the whole thing had been set up in advance.
I used that camera for years, replacing it with a Pentax Spotmatic when I was 18, adding another when I was 21, and a third later still, so I could carry different sorts of film. And I started using rangefinders too. Those Spotmatics, and a growing collection of wonderful Pentax lenses, stayed in use till my late thirties when I finally added a Pentax MX. Soon that was followed by an LX, and now I use five LXs (including the trademark pink one that I use for self-promotion as much as anything else), two MXs, an MZ-S, an MZ-3, and a 'range' of rangefinders. (And MF and LF...)
I'm still grateful my grandmother, as it was her that really fuelled the fire that that first Instamatic had lit in so tentative a way. After she died about five years ago it was with some of the money she left me that I bought my X-Pan and lenses.
Peter