More than 160 items of rugby memorabilia, some rarely seen before, have been gathered for an auction on October 13.
The feature piece of the collection is a cap from the 1884 New Zealand team - the nation's first representative rugby team and one which played in dark blue, not black.
"In my opinion, it's the most important piece of New Zealand rugby memorabilia that has ever been auctioned in New Zealand," said managing director of Art + Object Hamish Coney.
"Something like this has never come up for auction to the best of my knowledge," he said.
The auction will also feature five of the 10 rarest New Zealand rugby books, based on the 1985 reference book by David McLaren called A Handbook of Rugby Literature, which Mr Coney said had been invaluable in putting the auction together.