OK, I guess 'never' is a strong word. My car had none installed when I bought it 6 years ago. If it ever did have them, it must've been a loooooong time ago. The car was an A-Code poverty pack so it wouldn't surprise me if it was ordered this way. It's interesting to learn that they were standard. If it makes any difference, mine was an early build '65 (September '64).
Evan.