Fealach, I guess you are are number 2, although you deserve number one. Isn't that last one an Aria?
I have to admit I don't have that one any more. Aria ZZB or somesuch. I forget the model, but mine had 24 frets, which the other model did not. Mine also had 5 strings on a 4 string neck. The little shiny bit you see hanging off the bridge is an extra tuner. That string anchored at the string tree. I kept the bridge, returned the bass to 4 when I bought into a sob story about the stepson of an acquaintance who wanted to learn bass but only had $75 to spend on one. I found out a couple of months later he sold it for crack money. Kids these days.