Property:External link
[http://www.nga.gov/content/ngaweb/research/casva/research-projects.html A Project of the National Gallery of Art, Center for Advanced Study in the Visual Arts ]
This is a property of type Record. It has fields: External link URL, External link text.
C
https://founders.archives.gov/documents/Washington/03-09-02-0616 (Founders Online, National Archives) +
M
https://heald.nga.gov (HEALD Wiki) +