Yesterday was the day before !
Thus thousands of panzer were fitted with the tubular rear light, there is no evidence on what were the colors ( one color when the light is on, one color when the light is off
This question is interesting for a lot of modellers: how to paint it !
Some references give a blue or violet light
I am collecting relics in a modelling way, making a link between the real thing and models.
Collectors for vehicles are not modellers and they dont share the same questions or aspects.
I got a relic of a Marder III Ausf M armour plate and it has good remains of the tubular tail light on it. Though damaged after being 60 years underground, it offers the answer to the question.
Answer or invalidation of theory
These pics have my copyright.
So now, I think for the first time, modellers over the world will know what is the color when light is off
It looks satin black !
It has nothing to deal with a neon light with contact on both ends, it is a tubular plastic globe with two contacts on one end. The globe is screwed on that end. The brackets are made of plastic and are painted sand yellow. Unfortunatly, one end of the bracket is missing: just to say it is a holder for the closed end of the globe.
Of course we will still see blue painted lights on models for a long time, like we still can see red fire extinguisher on panzer despite all my efforts.
I am a modeller with one hand for collecting the real thing. And I am always surprised with modeller's community and its beliefs and gurus.
Another great answer to a great question will be : what is the color when the light is on !
This will be the day after !
( this post was just under my shoulder )