I'm not the OP, but those strongly look to me like lenses for composite 4" round truck-bus-trailer lights, such as
Peterson № 410-15R:
Centre section cut out and installed at the ends of those chrome cone pieces. Points for ingenuity, but there's an optical problem here. The bullseye in the middle of the lens, and the concentric rings around it, are fresnel optics. They're focused to look at a bulb filament a certain very specific distance away, and if that distance is changed even a little bit they can't collect/magnify/distribute the light appropriately. That centre section is
way too far away from the bulb in this '62 Lancer install. The rest of the lens might do more or less okeh since the Lancer taillight has a reflector bowl behind the bulb (especially if the reflector is painted with Ceiling White paint
(specifically).
There is no—as in zero—possibility that a '63 Dodge Polara lens will fit anywhere on a Lancer without use of a Sawzall; the '63 Dodge B-body taillights are horizontal rectangles. But that doesn't matter, because new tail lenses for both '61 and '62 Lancer (which are interchangeable, by the way, even though they're differently designed) are available out of Australia from David Azzopardi. He doesn't have them on his
website, but he does make them. The gallery on his site is worth looking at anyhow.
