Outfoxed Paraguay Cover To Neuva Zelandia, Australia

I bought this cover last year, as part of a collection advertised on FB marketplace.
I never recieved it.And no more correspondence from seller was forthcoming

Last night, browsing through a local site, I saw it.
The current owner was gracious enough to let me have it!

So thank you simon, you honourable chap.
Especially on ANZAC day too!
I loved it when I saw it. I loved it when it was lost, and I love it that it's winging its way back to me.

All opinions and ideas on how to restore would be greatfully accepted.

Restore or conserve?
Restore means making changes that cannot be reversed, conserving means slowing further deterioration.
Don

Interesting question Don.
As a lover of things from the past, I would conserve
As an amateur, I would like to do what's right for it.

edit: I cant even find what year it is. Im trying for 1930-35? scott #289ish?

Opinion:
I would place in a polypropylene cover, and leave as is.

It would need a professional archivist to conserve, and that would depend
on some as to the value of the cover, or to you, if you wish the impost.
It is a nice cover.
Sc#298
Be aware there was a Colony in Paraguay called "New Australia" from 1895
Search this forum for "Cosme Colony"

I shall take that advice at this time.
$ Value of the item is not of concern.

Its probably worth a mere pittance but what a story it may tell. Zoology,Paraguay what may have been discovered! (or not)
I do know that the Auckland University was called the Auckland University College when it first opened. However this stamp appears to be issued some 50 years after that. I have emailed Aux Uni and eagerly await some type of reply from their 'Dept of Zoologie'.
The stamp is a portrait of Pedro Juan Carabello. Issued in variants 1929 to '34. according to Colnet. Further examinations on its imminent arrival.