Great find on those pics.
I searched a long time for something like that with no luck. When I installed the
JS-2's MFU in my Trump 76, I wanted to make use of the brake light function. The
JS-2 clear sprue included the KV-1 tail light lens, same in the last pic, so I used that. I ended up putting a brass shield over it to blend in with the rear deck screen cover, but I thought it was too clunky looking. Apparently not though.
Nice T-34 you've got there, beautiful work.
What's the sign say, can't make it out in the photo.