Factory sway bar question

[gtxno1]

Hi guys just trying to figure a couple of things on a recent purchase in the process of resto it seems to have a rear factory sway bar my question is did it actually come with it how is the original bolted in I decoded the tag but it is not on there as an option 70 340 cuda 3 spd manual floor shifted

 

[Chryco Psycho]

It may well have come with the bar from the factory .
the factory fasteners were 4 sheet metal screws into the frame rail on each mount .