Ink stone on stand, ca. 1740
 | ||
  Photo by Peter Harholdt, 2004 |
 |
 "Benjamin Franklin: In Search of a Better World," Benjamin Franklin Tercentenary traveling exhibition, 2005-2008 Otherwise on ongoing display at the Franklin Institute 
 The ink stone was given by the Bache Family prior to June 24, 1943. |
 | ||
|