New York: Charles Scribner's Sons, 1964-1980.
Quarto, original maroon cloth stamped in gilt, spine decorated in black, lettered in gilt, decorated endpapers. Edges minutely dust soiled, else fine.
Twenty volumes bound in ten plus Volume 11, Supplements One and Two; Supplements Three (1941-1945) and Four (1946-1950; Supplement Five (1951-1955); Supplement Six (1956-1960) Supplement Seven (1961-1965); Supplement Eight (1966-1970); Supplement Nine (1971-1975); Supplement Ten (1976-1980). The last six volumes each with index guides to the supplements. Together twenty-eight volumes bound in eighteen.