Bigger Trees near Warter is 12m long and 4.5m high, and made up of 50 separate canvases

The New York organisation has disbursed more than $200m in cash grants and art donations since the artist's death in 1987

Lena and Per Josefsson donate SEK3M

Legendary dealer is thought to own 700 works worth £100m

Changes to US tax law could discourage collectors from giving

The director admitted they would not otherwise be able to obtain such a piece

A year ago the gallery launched a campaign to raise £100 million. Since then, £50,000 has been pledged from donors

Visitors are confused and staff suggest that museum is neglecting its artistic mission

The Alcoa Corporation is marking its entry into Russia by funding the tour of a Warhol Museum show

Tate board member Chris Ofili calls on artists to donate work to the Tate whilst selling his own work to the Gallery.

The institution has received 91 paintings by the Outsider artist Purvis Young

The gift increases the museum’s endowment to $7.1 million

The foundation has offered the museum a collection of more than 2,500 drawings by 400 international artists

The money will go to the museum after his death, with yearly donations scheduled until that time

Serota said no to 100 works in 1998, but is still keen to buy “major” pieces

The money is being given to Creative Capital, a nonprofit picking up the slack in arts funding

A mysterious donor gives the Tate £12.5 million to buy Reynolds’ Omai but the Armouries fail to get Lottery support for two armours

The trifles and hidden lives of artists

The Federal Finance Committee aims to stop financial abuses at US museums

in the US, give to get

Is the gift an act of virtuous self-regard?

Inspired by the Tate’s plans for Bankside, she gave the museum one third of her massive collection of modern art

First ever show bringing together Mexico’s twin stars at the Fondation Pierre Gianadda, Switzerland

Sir Edwin Manton, an American-based insurance executive, has donated £7 million ($11.2 million)

This ups the museums holdings of the artist to 22

Bequest of modern paintings and sculpture to tour American cities

The bequest, one of the largest in the museum's history, includes three of Gertrude Stein’s Picassos