Hey marapaul
lovely universals and dominions..
Now im no expert having only a small collection of 1ds myself.
So what I can see is that you at least 3 different types of stamps here.The 1901 "Zealandia", the 1909 KEVII pictorial "dominion" and of course the 1d Zealandia official.
"There are three different designs of the penny universal postage stamps which are easily confused. The 1901 Penny Universal has vertical shading on the globe. The wake at the bow of the steamer is also far more impressive on the 1901 Penny Universal than later designs. The 1909 King Edward VII 'penny dominion' has a similar design to the 1907 Redrawn Pictorials penny with 'Dominion of' added at the top of the stamp and 'universal postage' appearing on a scroll at the bottom of the stamp. Both the 1909 King Edward VII dominion and 1907 Redrawn Pictorials penny stamps have diagonal shading lines on the globe behind the figure of Zealandia"
I quoted from this page:
https://stampsnz.com/1901_penny_universal.html There are a lot of errors on these stamps. I have a couple being the Q plate floor and the broken shield plate floor from the "dominion" which I will upload when my computer stops playing up (my excuse for being notoriously terrible at scanning stamps)I feel some of yours would be from the very worn plates and would be great to investigate. Here is a good first place to start!
http://www.nzstamps.org.uk/universa...erlowpl.html

There is some very very succinct and very enlightening discussions on pages in this forum if you look for NZ penny universal in the search bar including this one.. im not sure how to do the little scf link so heres the whole thing
https://goscf.com/t/7663&whichpage=1Good luck