Roget's Thesaurus

John Steinbeck's Webster's Dictionary
John Steinbeck's Webster's Dictionary and Roget's Thesaurus: Rare Books of the Week
John Steinbeck's personal copies of Webster's Dictionary and of
Four editions of Roget's International Thesaurus, printings 1946 - 1960
Stephen Sondheim’s Thesauruses Sold for $50,000+
Doyle's auction of the Collection of Stephen Sondheim