Later this month, a 1966 Beatles concert poster from the group's legendary Shea Stadium gig will go up for auction at Philip Weiss, in New York.
The Beatles era-defining gig took place on August 23, 1966 during the band's third and final US tour. Unbeknownst to everyone - especially their fans - they would perform their last-ever gig six days later at Candlestick Park.
After then, The Beatles would abandon live performances and touring for many years.
Today, historians attribute an number of factors to this: for starters, their music was becoming increasingly drowned out by the screams of Beatlemania.
Elsewhere, brewing controversies surrounding a recent John Lennon interview, in which he proclaimed that The Beatles "are bigger than Jesus now," had resulted in death threats.
Decades later, memorabilia like the Shea Stadium poster are among the few rare items by which collectors can remember The Beatles all-important influence on pop culture - and also video footage.
The above film uses previously unseen footage of the Fab Four in action to illustrate how their touring would invent what is today called "youth culture" and forever transform popular music and the industry which surrounds it.
Meanwhile, Paul Fraser Collectibles currently holds a rare and valuable photograph signed by all four Beatles is currently for sale to collectors and investors.
This South Pacific TEAL in-flight magazine - measuring 8.5 x 11 - is signed on the front cover in blue ballpoint by each of the Fab Four, and valued at £22,000.
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