[mmoustaf]

Rigt. The puzzle is fit now.

As you see from the test report and attached photos from the same report 9209 belongs to 6./JG52

Now it is proved. 9209 (yellow 4) is a JG52 plane.

Also look at the wheel wells.
9209 has rounded wheel wells that match WNF maches after 6714

The picture of 8./JG51 plane captured in NII VVS has squared wheel wells
The explanation is easy.
I have another NII VVS report about JG51 plane and the number is 96xx (I can't remember now but I will send you scan on Friday - it is in my cottatge near the place where 9209 made a landing)

If you like I can scan more NII VVS info on 109s