For years the Hammer Museum in Los Angeles has presented an artist-designed mouse pad to members who donate $100 and up.

Now they open their house only to private tours organized by the Hammer Museum, the Lautner Foundation and, occasionally, charities.

The Hammer Museum is dedicated to the history of the hammer in human society.

Jan. 28 through April 22 at the Hammer Museum, Los Angeles, (310) 443-7000; hammer.ucla.edu.

In 2012, the Hammer Museum acquired Three Weeks in May (1997).

He joined the Board of Directors of the Hammer Museum in 2012.

Westwood is also the home of the Hammer Museum.

It will travel to the Hammer Museum at the University of California, Los Angeles, in the fall of 2006.

At the Hammer Museum, 2010 attendance was an estimated 175,000, up from 150,000 in 2009.

The Hammer Museum alternatively sold the 72-page scientific notebook to fund the museum's exhibitions and programs.