Here are the 2 ICI Eley posters from that article relating to "Lethal" ball ammo.
I figured they were the best quality and most interesting of the bunch.
Some of the hunting photos are almost illegible.

Looking at the construction of those "Lethal" and "Destructor" balls, it strikes me
that trying to reproduce them would be a serious challenge.
Could be done but only by someone at the top of the casting field.