In 1957, stereo equipment first became available for home use. Audio Fidelity records is credited as the first manufacturer of two-channel stereo discs in the United States, and this record represents their first take on creating a catalog demo. Chronologically, this should be contemporary to the undated ABC's of High Fidelity.
As pioneers of stereo recording, Audio Fidelity were the first to bring Louis Armstrong, Al Hirt, and Sergio Mendes to home stereo. They were also pioneers of stereo sound effects, thanks to the work of engineer and Audio Fidelity founder Sidney Frey. This Time Magazine article details how far he'd go to get a sound, and you'll find that lion roar, along with other Bronx Zoo snippets, on this recording.
These albums were intended for in-store use to show off the channel separation and three-dimensional quality of stereo equipment. Because Audio Fidelity got a head start on releasing stereo discs, their albums were routinely used for demonstrations, which helped to sell their stereo albums as well. Within a year, Warner Brothers, Capitol and Decca would catch on, producing their own demonstration albums and following the same template, with a mix of narrative, music and sound effects on side one and those record-selling catalog cuts on side two.
The album cover is not quite work-safe, depending on how you (or your coworkers) feel about pasties. By 1950s standards it's downright risque. The image you see is the record in its sleeve, an unusual printed polyetheylene bag.