Zenit SLR back around 1970 IIRC. No meter, no instant return mirror, and no automatic stop down on the lens; so it was very entry level, but all I could afford at the time. Used it for a few years, followed by an Olympus 35RC, then bought a Nikon F2 when I worked in Hong Kong.
I still have the F2, and it's been my favourite camera for over 30 years. Its little brother (FM) is pretty good too!