I wish I could have salvaged my D50 cord...
...but the motor inlet of the cord was brittle and would not stay plugged into the switch. It was duct-taped to keep it together. Also, the cord had multiple, permanent twists where the material would "knot" (for a lack of a better word). It was a shame as the cord had no nicks or cuts. It does, however, look OK with the ca. 2019 black Kirby cord, which seems to be a bit heavier-duty.