Yes, after a long search I finally found and bought me a Yashica Mat 124 G, in excellent condition
Made by Yashica from 1970 to 1985, this Rolleiflex clone was the last model of a long Yashica twin-lens reflex series. It was introduced when this kind of camera seemed obsolete, but it was a success and it can easily be found in garage sales.
It has a built-in CdS light meter. There are some guidelines on the viewfinder's ground glass. The light-meter uses forbidden 1.35 v mercury batteries but it works OK with today's 1.5v alkaline batteries.
It is a very good entry-level medium format camera.
The 124G has a four-element, 80mm F3.5 taking lens, of the better "Yashinon" variety. Focusing is via a ground glass screen, with a 3x
diopter for critical focusing, as well as a sports finder. The Copal shutter features speeds 1 to 1/500 sec., plus B.
The 124G can handle both 120 and 220 film.
I developed my first roll of Fuji Superia yesterday, and will post some photos later this afternoon ...