Grandfather found some binoculars on the dead body of a WWII German soldier. Grandmother finds them too heavy for bird watching and isn't too concerned with what happens to them at this point.
Edit: I don't know if you can read the right side but it says
"Dienstglas
6 x 30
101857
H/6400"
I googled and found this site from 2003 with a guy making a database
http://forum.axishistory.com/viewtopic.php?t=37513&highlight=dienstglas
Hope this helps, It is a common service binocular used by the German army during WWII.
Left Plate: It's not very clear in the photo. Should show maker name and place of manufacture. Binoculars made after the start of the war would have a unique three letter codes instead. List of Codes
Right Plate: Dienstglas 6x30 - "Service Glass"
101857 - serial number
H/6400 - refers to the graticule's (targeting reticule built into the optics) mil graduation
Additional Examples: Example with brief history and explanation, More examples
List of Zeiss Binoculars from 1894-1950
Related Books (might be hard to find):
Gubas, Lawrence J. (2004) "An Introduction to The Binoculars of Carl Zeiss Jena from 1893 - 1945", Lightning Press,Totowa, New Jersey. ISBN 0982182716
Rohan, Stephen. (2001) "A Guide to Handheld Military Binoculars 1894-1945", Optical Press, Bradbury, California, ISBN 0-97090003-0-9