Art, Art Galleries, Art Exhibitions

I'm hoping someone one here can help me out with something art related as I've got absolutely no clue!

I'm looking to buy a gift for my wife who's a huge fan of Henri Matisse and this cropped up when I was searching for something.

https://www.goldmarkart.com/collections/henri-matisse/products/souvenir-doceanie-1

In the information it has the following:

Between 1950 and 1954 Matisse created some highly innovative, brightly coloured gouache paper cut-outs. Severe arthritis had made it difficult for him to paint.
In 1953 it was decided to reinterpret these works as lithographs. Matisse personally directed and supervised the first 'pulls' during 1954, in collaboration with the renowned lithographers Mourlot Frères of Paris.
These prints are original lithographs from the 1954 edition after Matisse’s cutouts. They are not later reproductions and are not to be confused with modern posters.

What does this actually mean?
Is it basically an expensive reproduction?
As I've no clue, I really don't want to spend a load of cash on something that's not worth it!