[Remo801]

AFAIK, some of the Bf 109 E3/F2 Planes had a Mirror installed.

But, it was no installation from the Bayerische Flugzeugwerke/Messerschmitt.

It was a costum field modification made by pilots. They had seen it on enemy planes.
I don't think, this modification have improofments to the german pilots, the motor vibes to
the mirror could be to strong.

I had found an article about this case yesterday, but can't refind it now. :oops:

I try my best...if I find it, I will post.

My Vote is NO. My fav plane is BF 109, I fly it near all the time. No facility installation = no mirror.
IMHO