Pre-war Dienstglas leather ocular cover + strap 'WaA'

A very nice original, pre-war period leather ocular cover for the 6x30 / 7x50 /10x50 Dienstglas service binoculars etc. Nicely marked to the inside with a Waffenamt proof and other, now mostly illegible, markings. 
 
This example also comes complete with the original leather neck strap (including attachment studs), and is therefore ready to be fitted straight on to any Dienstglas which is missing these all important accessories!