June 4. 1964 the Beatles began their world tour, the only one they made.
The concert in Copenhagen is remembered because Ringo Starr, the drummer got ill and was replaced. So only Paul McCartney, George Harrison and John Lennon were on stage with the replacement.
The Beatles performed two shows as the KB Hallen venue, at 6pm and 9.30pm, with 4,400 fans seeing each.
The poster can be seen in the Grøften Restaurant in the Tivoli among other interesting items. Especially the history of Tivoli.