What? No air bags? 😉 I guess stuffing large bags of marshmallows in your vest sufficed in 1928.
No seat belts, no ABS, no power steer, no power assist brakes, but some fool has added indicators, might remove them as they are not standard OEM equipment and possibly the brake light too, hand signals are all you really need and it adds to the charm but tends to dumbfound the uninitiated Millennial's.