Allis Chalmers B, C, CA, WD-45 and D-10 tractor shift knob.
New replacement tractor part #A202.
For AC B: serial numbers 120982 and up.
AC and CA serial numbers 18971 and up.
WD-45: serial numbers 12700 and up.
Used as cab door knob on some models.
Replaces: 70226023 and 226023.