Larry Gude
Strung Out
...earlier Harleys than my '47 used a gravity feed oiling system where you filled up a tank and it (the oil) wended its way through all the vitals until it was dropped out on the road.
I love learning stuff like that. It helps me keep perspective and more appreciate the invention and creation of stuff over time. It's not like the day after internal combustion came to life that everything else was figured out as well. That makes perfect sense, made perfect sense, at some point.