I don't have sealed beams. I could have gotten a headlight bulb with a built in turn signal. I am told they aren't very effective. The ones I have are not very effective either....just too small. they are mounted out on the ends of the bumper and are about 1" diameter.
I hate to break up the clean lines with a top of fender mounted light, though they are very effective visually for...well, visibility.
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.

[SIGPIC]
..I also have a 427 Cobra replica with an aluminum chassis.