Hello,
Currently on ebay is a photo of the LVG E3 at:
https://www.ebay.de/itm/Fliegerschul...oAAOSwpexfKrid
The seller states that the machine is shown at Döberitz. Not sure whether this is the case or not as Jack Herris states on P.10 of LVG Aircraft of WWI Vol.1 that "the machines did not meet the needs of the pre-war German army."
Regards,
Clint