110 diagram not affected by Photobucket problem?

I am NOT ready to work on, mess with, or basically even touch any of the wiring in my '65 Arrow Little Chief as yet, but I do want to know generally which wire is what while I'm working around them. Seems like it might be helpful to label them with little twist ties or something, while I'm finishing my wood-rot assessment and decision-making.

I see that there is some very helpful info in this thread—I'm printing the text for reference, but I can't see any of the images:

vintagetrailertalk.freeforums.net/thread/69/providing-safe-power-vintage-trailer

Can anybody point me to a good visual reference?

Thanks.