2000 Library of Congress $10 Bimetallic Gold and Platinum Commemorative Coin
December 2009 - Library of Congress Information Bulletin
98 Braille Images: PICRYL - Public Domain Media Search Engine Public Domain Search
The Library of Congress & the Library Community (August 1999) - Library of Congress Information Bulletin
History - National Library Service for the Blind and Print Disabled (NLS)
Announcement Archives - Duke University Libraries Blogs
Library of Congress - Wikipedia
2009 P US Louis Braille Commemorative BU Silver Education Set Dollar Uncirculated US Mint at 's Collectible Coins Store
United States Mint 2009 Louis Braille Bicentennial Silver Dollar with COA
September, 2016