Sorry for not giving more information.
Have a rodded '34 Ford, no bumpers, running a B&M Street Shifter with no reverse switch that I can find. That's not an issue as I am not opposed to putting a simple toggle switch under the dash to turn on the lamps.
What I am asking is more on the install side. Where to actually mount the lamps, (single or double) and what types are available. I've looked at a single reverse lamp for an early VW which was designed to mount on a bumper, but seems rather cheap.
Here's a rear view of the '34 (The exhaust tips & AAA sign are no longer there. Changed the exhaust to side mounted Camero SS tips infront of rear wheels).


thanks!

bart