Praktica SLR. East German, mid 1970's 35mm.
Most photos are shot with a 200 mm Vivitar lens (unknown vintage), picutred on the camera.
The lens has some interior mold or fungus growth (not visible in the print images due to focal length).
A few of the images were shot with the 44mm Helios borrowed from the Diramic 1978 Soviet camera.
Uses an "M42" screw on lens style.
The shutter release is on the front. Nicely ergonomic!