Audio Magnetics Corporation was founded in 1966 in Gardena, California. Sometime before 1972 (maybe in 1970), the company launched a series of blank audio cassettes. It seems that each of the products (60, 90, 120 minutes) was assigned a different suite of four colors for the stripe pattern. The big type is Filmotype Royal, which appears to be a phototype interpretation of Old Style Expanded, originally released by Barnhart Brothers & Spindler before 1893. The smaller text is set in what looks like Trade Gothic Bold and Bold Condensed.

See the Pure Analogue and Mamama websites for other images of the 120 minutes cassette.

Two styles from the Filmotype library, used together on the cover of The Ping Pong Sound Of Guitars In Percussion, recorded by Eddie Wayne & Group. First released by Coronet Records in 1961, this is the stereo version from 1963.

Filmotype Royal was one of Filmotype’s earliest transitional serif typefaces, inspired by lettering used on steam-era passenger train coaches. [Filmotype] Originally available in an expanded width only, the digital version by Charles Gibbons expands the design to five widths.

Filmotype Wave was classified in Filmotype catalogs as a Flat Serif or Copperplate style. It’s essentially a bold wide design with low-contrast strokes and horizontal terminals, distinguished by tiny flare serifs. Wave hasn’t been digitized yet.

[More info on Discogs]