I have had about 10 of the Yashica Gsn, Gt, Gtn, etc...
All have needed work like seals, lube, rangefinder cleaning,
battery corrosion problems and there is a small "pad" in the
camera that goes bad too. They can be found in this condition
for $20 or so but I have never seen one that did not need some
work so allow a budget for that. They do shoot well.