Jaguar mk1 "red" glass license plate lense?

Continuing the discussion from What did you do to your Saloon today:

I have a question for our jaguar friend across the pond,please. i have a clear and amber license plate lense. you-all ever see the “red” glass lense?

That is the reverse light, never seen amber.
At least here a amber reverse light is forbidden, it must be a clear lens.

I think that’s an add on for 3rd brake light. I will be adding one on my Mk2, but in the rear window.

You’re not using rubber under the lamps, also no bumper upper rubber lip/seal.
Is it deliberate ? Also Your license plate fram is upside-down. Why’s that ?

thank you.

thanks for the info

i will check that out.

understand now–not my car---- my reference was about the red lense.