Dual remote release cable allows you tf ire the shutter and close the iris on the lens simultaneously. Viewfinder magnifier allow precise focussing.

Made by Pentacon so originally designed for full compatibility with Praktica cameras, Should work with any camera that uses the M42 lens mount. The viewfinder magnifier may only be compatible with Praktica cameras. Alll boxed with instructions

The dul release cable has been repaired with some tape. It is working but one of the cables may need replacing in the near future.