help ID antennas

I tried running a couple of searches but, either get nothing or several hundred hits.
L to R
1) grey plastic housing
2) grey plastic housing w/ slight difference to the mount style.
3) Bosch trim ring. grey cable.
4) Hirschmann w/ threaded cable end.

mounted unit is on my '73. I can only get a pic from the top side at the moment. wondering if it's original.

input appreciated.

Jerry,

Left three are not original. One on the right is for impact bumper cars.

All four are not correct.

my thanks to both of you.

Is the one on the right correct for a 1966 911-912