Tewe Polyfocus 35-200mm External Finder Viewer for Leica etc. -Light Haze, Read-
This is a useful external finder that zooms, rather than cropping and has parallax correction.
It is lightly worn and works perfectly. The glass is clean and scratch-free, with a small amount of haze in the front element that does not affect image quality or framing. It comes in a nice leather case.