The uke in the top photo has five tuners, I noticed, so I imagine it has five strings. I wonder if there's another photo of it anywhere from the front.
I believe you are all wrong. And I will explain why.
His uke was not one of these mere mortal manufacturers you mention. No, it was custom. Pieced together by Norse gods from various pieces. The wood was dogwood from Christs cross, giving it it's god-like tone. (*rimshot*) The saddle and nut were made from hand carved and polished unicorn horn. The finish was applied by carefully rubbing the surface with the virgin tears of newborns. The inlay was obviously polished narwhal tusk. You people are way off