Looks like a repurposed fog light to me. I had a yellow lens one in that position for years. Now have waterproof 40 W LED that will do white, amber, or flashing in amber or white. Very bright - amber easier on night vision when there is snow floor.
My 72 has a rounded top fuel cut out.
We could ask the CIA to zoom and enhance the data plate in the pic above.
My 72 has a rounded top fuel cut out.
We could ask the CIA to zoom and enhance the data plate in the pic above.