[We have the following press release of the New-York Historical Society via HNN:]
New York, NY, May 31, 2011—At an auction held on Friday, May 20, at Sotheby’s, the Chairman of the New-York Historical Society, Roger Hertog, purchased the Constitutional Convention notebooks of John Lansing, Jr., a New York delegate to the 1787 Philadelphia Convention. Mr. Hertog has announced that he will donate the exceptionally rare documents to the Library of the Historical Society.
The New-York Historical Society plans to digitize the Lansing papers in their original format to share with scholars everywhere. The documents will also be displayed in an exhibit when the Historical Society’s galleries re-open in November 2011.
More.
The New York Times's story--the source of the images above--is
here.