This is a vintage booklet from Eastern Airlines, dating back to 1973. It features information about the Eastern Sound System, which was used on Eastern Airlines flights during that time. The booklet also includes references to the Doobie Brothers, Neil Diamond, The Byrds, Dawn,  Humble Pie, Jim Croce and more, indicating that their music was part of the in-flight entertainment. This item would be of interest to collectors of aviation memorabilia or fans of Eastern Airlines or the Doobie Brothers and these other notable pop artists.

*Please note there is minor damage to the back as it was in a scrapbook album. Shown in last photo