7 1/8 x 4 1/4 in (18 x 10.8 cm)

Provenance and Authentication:
This collectible has undergone a rigorous forensic evaluation. The signatures were carefully analyzed across multiple criteria, including ink deposition, material aging characteristics, stylistic consistency, and historical alignment. The findings provide a sound basis for authenticity and historical context, and the piece is accompanied by comprehensive documentation supporting both its provenance and verification.

The Beatles represent one of the most culturally transformative forces in twentieth-century music, whose influence extends across sound, visual art, and popular culture. Collectibles bearing the signatures of all four members-John Lennon, Paul McCartney, George Harrison, and Ringo Starr-occupy a top-tier position within the global autograph market.

This piece is a Yellow Submarine themed booklet, directly connected to one of the band's most visually iconic and artistically experimental projects. The psychedelic design language of the cover and interior reflects the late-1960s creative direction of the group, reinforcing its importance within The Beatles' broader cultural narrative.

The interior spread features all four members' signatures, each executed in pen with distinct individual characteristics. The placement of the signatures across both pages creates a balanced and visually engaging composition, with clear separation allowing each autograph to remain legible and identifiable.

From a collecting standpoint, fully signed Beatles items are significantly more desirable than partial-signature examples, due to the rarity of obtaining all four autographs on a single piece. Material linked to Yellow Submarine carries additional appeal, as it represents one of the band's most visually distinctive eras.

The booklet format adds an additional layer of interest compared to flat items, as it connects the signatures to a specific publication context rather than an isolated medium. The internal signing location also enhances the sense of intimacy and collector appeal.

Condition shows expected wear consistent with age and handling, including surface creasing and edge wear, but remains structurally intact. The signatures appear stable and readable, which is the primary value driver in this category.

In the market, fully signed Beatles material consistently commands strong demand across both Western and Asian collectors. Items combining complete signatures with recognizable cultural content tend to achieve the most competitive results.

The combination of all four signatures, a culturally iconic title, and cohesive presentation places this piece firmly within a high-demand segment of Beatles collectibles.

Overall, this is a highly desirable and culturally significant collectible, representing one of the most sought-after autograph configurations in music history.