Little update:
After removing the gobs of sticky, 100-year old friction tape, I found a few metal rings around the wires with numbers on them.
T-4 previously went to hot
T-2 and T-3 were joined
T-1 (assumed as there was no ring on that wire) previously to hot
Based on the relatively sound assumption that the motor was previously wired for 220 (wired in series), to convert to 110, the system should be wired in parallel.
I show continuity between:
T-1 and T-3
T-2 and T-4
So does anyone have documentation that would make one or the other of the following correct:
T-1 joined to T-2 to hot
T-3 joined to T-4 to neutral
or
T-1 joined to T-3 to hot
T-2 joined to T-4 to neutral
From Mark's sketch (Post #11), and my intuition, T-1 + T-2 and T-3 + T-4 would be the way to go. However, keep in mind that I got a C in electrical engineering in college a long time ago.