Hi all and KGV Collector

This first stamp has a Roo with a "Poo attached" I can not find it in the ACSC, so has anyone else seen it.

The Second one is listed in Gibbons as SG21a die II and is quite valuable, but it has another fault at the extreme right above and near the emu.

These two I am not sure about, are they just guidelines on the extreme left?

These two are listed in the ACSC
the 1st on the left is 70 (3)f, but is it a comb or normal perforation. The 2nd is 70-74(4)n but again what sort of perforation is it.

Now This one, what is it, is it another rusted cliche, as the roo is almost just a blob?
I have examined more that three hundred penny reds, and found these, so I do not know what else I may find in the others.
Any information would be gratefully appreciated.
Regards
Horamakhet