The Beatles - Magical Mystery Tour MMT-1, Sleeve with 24-page booklet, UK, 1967

Mono Mix: The "MMT 1" catalog number on the back cover and the absence of the "Stereo" badge confirm this is the original mono mix. This specific set is theMono version, which is highly sought after by audiophiles, as the mono mixes were personally overseen by the band and George Martin, often resulting in a punchier, more cohesive sound compared to the early stereo versions.