I.D. these bars?

OK, I didn't see any switches or holes for them in the pics. HD started using that style of internal throttle sometime in the 50's. (there was a different style before that.) Stock cable was solid wire, not stranded, and there was no return spring. The left side of the earlier bars looked like the right, with the slot and the smaller diameter and had a twist grip control for the spark advance. The bars were also drilled for a hi/lo switch, a horn button, and if equipped, a turn signal switch. If you've got a three position switch, it's the TS one that's still there. About '66 on, HD started using an automatic advance for the timing. After that, the left grip looked like what you have. About '72 or '73, HD went to the disc brakes and the switch boxes on the M/C and clutch perch, so those bars don't have switch holes, but do have holes on the bars for the clips that held the external wiring harness. About '74 HD started using the outside throttle and the bars are single diameter without the ferrules or anything else.

You're missing at least the spiral for the internal throttle, and probably more. (I can't see.) There are two types that fit those bars, one pulls the cable, the other pushes the cable. Try to find an old HD parts book with an old diagram, or maybe there's one in the print V-Twin catalog. These bars also take two 1 1/8" grips.