This is a parts lot of 1967 (if I recall correctly it's been a long time) Pontiac full size AC vents and associated parts. I believe these are the ones I removed from a 1967 GP wagon that I bought from a certain member of this forum.
They may fit other years, I can't say for sure. Hopefully someone will recognize them.
The lot consists of 2 side vents, 1 lap lap cooler vent and an indash centre vent (that's why I think it's 67). The brackets aren't necessarily related. The light I think went on the underside of the dashpad. Not sure about the other lens.