The Alphabet for the Deaf and Dumb.
West Rupert, Vermont: N.p., c. 1850. Broadside measuring 8 ½ x 15 inches affixed to sheet measuring 10 x 15 inches. A broadside depicting a sign language alphabet invented by Charles Parker, Sr. (1827–1912). This broadside is affixed to a page from an accounting ledger. Parker, a graduate of the.....

