My first Retina was the simpler, meter-less S1 version of the camera that AgX posted a link to. It was also my second 35mm camera ever - preceded by a Kodak 35.
Both the S1 and the S2 were kind of sad in many ways - extremely pedestrian, with just an ok lens.
But it was a great camera for a teenager who liked to use Kodachrome.
And what other camera combines a built-in Sunny 16 guide and a choice to use either electronic flash and flashcubes!?
And of course, there are also the Retinettes - see my avatar - I'm sure the group will be happy to discuss them.
Come join us over there:
https://www.photrio.com/forum/groups/kodak-retina-users.158/group