It may be the way you read the book,
8-50-82
w/o Tilt and Telescoping Steering Wheel, P, D - 2857 241
w/o Tilt and Telescoping Steering Wheel, w/o Cornering Lamps, C - 2857 241
w/o Tilt and Telescoping Steering Wheel, w/Cornering lamp, C - 2857 242
w/o Tilt and Telescoping Steering Wheel, C - 2880 829
w/Tilt and Telescoping Steering Wheel - 2880 271
The cornering light switch can be used on cars without cornering lights, you just have a few extra wires.
my '67 NY'er, despite otherwise being L-O-A-D-E-D, does NOT have tilt/tele, so this one isn't for me. THANKS for pointing this out. I think that's the same "unobtainium" switch for Imperials.