The Smithsonian Collection of Classic Jazz

The Smithsonian Collection of Classic Jazz is a six-LP box set released in 1973 by the Smithsonian Institution. Compiled by jazz critic, scholar, and historian Martin Williams, the album included tracks from over a dozen record labels spanning several decades and genres of American jazz, from ragtime and big band to post-bop and free jazz.

Source: Wikipedia — The Smithsonian Collection of Classic Jazz (CC BY-SA 4.0)