Dieses 8x20 Monokular mit Nahfokus ist im Prinzip identisch mit dem Kenko KDT820.
|This 8x20 monocular with short focus is identical to the Kenko KDT820.
There is a focus range scale tat the tube, a rubber covering for the eyepiece, and the lenses have a blue coating.
The company or tradename Ryner cannot be found any mire on the internet. The model name LVA stands for "low vision aid" and it must have been sold as such.