they do look ancient. when doing red super giant we came across an old short bolt ladder up a few meters of blank slab somewhere on maybe the second pitch that has carrots like those in your pic. We (at least me, and I know john) never placed any carrots at bungonia, only 10mm dyna bolts (except for a 12mm dyna bolt rap off somewhere on top of the stardust slab and a couple of 6mm dynabolts as aid when attempting a failed access route to the top of the wall teflon is now on).
I remember the start of slope'n sope'n looking impossible but turning out to be climbable with a leap of faith (literally). Dont remember that much about the routes we did right of stardust other than the most right hand one (could be antique but i never used that name, I think I called it star man but never recorded it in anything other than the camp pritikin log book) had a slick bouldery start protected by a 1/2 friend up to a bolt then natural gear to another bolt towards the top, then the 12mm rap bolt at the top.