Originally Posted by
Catnap
Dia-Compe DC138 hand rests were typically paired with a set of Dia-Compe guidonnet-style brake levers for a more upright position on drop bars. I built up a cockpit in this style a decade ago but found guidonnet levers to be too flexy for my tastes:

Dia-Compe also makes the HR-07 "tandem hand rests":

my build has a 3 speed rear hub with a coaster brake, so not needing brake levers. silver king frames didn't mount any caliper brakes anyway. but i'll be using those nubs to hold on while i engage dragging my foot on the ground for emergency stops! but thanks for the info!