The Beatles were a 1960's British singing quartet. These items were advertised in magazines at the time. They were supposedly manufactured by a Robert A. Perry.

Brass, 30 mm, 10.35 gm
Obverse:
Faces of the four Beatles
THE FOUR BEATLES
JOHN PAUL RINGO GEORGE (John Lennon, Paul McCartney, Ringo Starr, George Harrison)
© NEMS (N.E.M.S was Beatles manager Brian Epstein's North End Music Store in Liverpool)
Reverse:
American flag and wreath
COMMEMORATING THE 1964 BEATLES VISIT TO THE UNITED STATES
RAP (Robert A. Perry)