Rear decklight question on my FHP

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I took this information from the inservice section of the site. It says the following about my car:

"1991 FHP unit #1395. This car had Federal deck lights, and one of the many variations of font on the license plates (3M testing). FHP Photo. "

Does anyone know exactly which Federal Lights these may be? I have dashmasters for it but I want the car to be correct.

Also what does it mean about the plate on the car when its refered to as being different from the normal FHP plates?


Thanks!

Chris