Hello,
Okay, thanks to your help, we're now getting to the bottom of this. Here is the image of this insignia on the Do17Z 3Z+JH that force-landed after damage from fighter attack during the WC. Thanks to frequent board contributor Rudi, who has recently joined the EOE Working Group, for this imagery:
http://www.servimg.com/image_preview...=15&u=11993385
We've now got enough clues to put this one together. This is a bat, which has some kind of ferocious fanged face and a wing extended, clutching a light-colored falling bomb between its legs. The rear part of the bomb is evident in this image, not clearly visible in the other images. The front of it is there but is in shadow. Taken together, however, I think we can be pretty confident what it is. The "Fledermaus" clue clinches it for me. We still, however, need to get a clear close up image of the design and determine how widely this was used within I./KG77. I suspect that this design lasted no more than two to four months maximum, and probably didn't long survive the end of the Western Campaign. An 8./KG77 Do17Z, 3Z+GS, with the familiar Geschwader flag insignia was shot down on July 3, 1940, in a Kent hop field, and it appears that by early in the Battle of Britain the unit's aircraft probably carried that insignia as it steadily converted to the Ju88 through the BoB. Incidentally the insignia for 3Z+GS still exists in a collection in Britain. Very nice to see it in color.
Besides Rudi, I also want to thank "Robert" for his help with this (another regular poster to the TOCH board and member of the EOE WG). He first suggested the connection between the two photos to me that has led to this posting.
So, let's all find some more examples of this and a close-up photo of this insignia. That will nail this one.
Incidentally, if anyone knows the circumstances and full identity of the crash of the Do17Z, 3Z+JH, during the WC, I'd like to hear about it. We don't have a really good candidate for this incident at present.
Regards,