This rare Warn Hub Selective Drive owner’s manual was saved for decades by Merton Day. His Grandson, Frank Day, generously sold this along with some last-of-a-kind Free Lock hub information to me.
This owner’s manual is one long, two-sided brochure measuring 20 1/2″ x 2 7/8″ that folds up into a 2 7/8″ x 2 7/8″ square (the top is to the far right of the first image below). Here is the original version. This could be called the front:

And the back.
To improve readability, the images have been halved. Front:

































