The Luxor taillight at the top has had the lens dislocated - it should fit inside the rolled-over section of the bezel.
The Comodo reflector is an interesting piece, with green-anodized aluminum and white (plastic? Nylon?) outer disk. Not sure why you'd need a reflector mounted on springs... perhaps to bounce back-n-forth for more visibility? Maybe so it can be bumped without breaking?
The JOS taillight has a broken lens, but replacements show up NOS from time to time. Beautiful design, very curvy and nicely proportioned. A high-dollar item.The final unidentified egg-shaped taillight looks well-made. The screw mounting reminds me of Radios or PYB... perhaps I'll know more when it arrives and I can look inside.