These lights are with a wire for the rear amber sealed beams, maybe they have internal flashers.
The Trio T-2 was delivered with only one wire for both sealed beams from the factory.
They was rebuild by the users, like the LAPD, with internal or external flashers by adding a second wire to the light.
I think these lights are repainted because the grounding screw is painted.
It is non painted brass on my two garanteed NOS lights.
The lights seems to have been delivered by B&M quite resent due to the fact that the address is the most recent.