Nice collection - on both album pages (homemade maybe - can't tell) and on dealer sheets that were never added into mounts into the collection. Appear to be mostly MNH.
See pics to get a representation as to what is there. There are a number of used stamps too as the collector tried to get both used and mint examples of each. This is an original, and not a reproduction!
Good luck and thanks for looking! The item "New Zealand Stamp Collection Mint 1980's 2000's Over $1,600 NZD Face Value" is in sale since Saturday, January 11, 2020. This item is in the category "Stamps\Australia & Oceania\New Zealand". The seller is "cf9100" and is located in East Moriches, New York. This item can be shipped worldwide.