6x30 Dienstglas binoculars 'blc KF'

A good used example of the mid-war era 6x30 Dienstglas field binoculars, produced by Carl Zeiss Jena under the 'blc' maker code. 
 
The optics have some relatively internal dust, but are still functional. The H/6400 Strichplatte rangefinding reticule is still fitted.