Early 6x30 Dienstglas binoculars 'Busch Rathenow'

A nice example of the early-war era 6x30 Dienstglas field binoculars as produced by Busch, Rathenow. 
Constructed from brass and still fitted with the original leather neck strap. 
 
The optics still have H/6400 Strichplatte rangefinding reticule within the right-hand side. 
 
A good example of their type, which are clearly combat used, and would be ideal for display purposes within any collection!