If interested:
35+ year-old grease in adjustable cup (Note, bike has not been ridden in over 30 years)
I believe the drive side.
Fixed cup.
Curious the difference in colo(u)r of the grease from one side to the other.
It was very, very gooey, but I believe its lubricity (I love that word) remains, tho the crank certainly didn't 'spin'.