These are the printing mock-ups where the final composition and compositing are worked out before going into the darkroom. Printing notes would then be added in the darkroom and when completed, the mock-up would be used as a guide for when the prints are glued to the final panel. The percentages marked on the image are exposure notes indicating if parts of the image were to be printed lighter or darker.

In this shot, the swords and spear were used in the original shot. And yes, they were real.