In the song "Penny Lane" by the Beatles, what does the fireman have in his pocket?

"Penny Lane" is a song by the English rock band the Beatles that was released in February 1967 as a double A-side single with "Strawberry Fields Forever". It was written primarily by Paul McCartney and credited to the Lennon–McCartney songwriting partnership. The lyrics refer to Penny Lane, a street in Liverpool; it makes mention of the sights and characters that McCartney recalled from his upbringing in the city.

"Penny Lane" was a top-five hit across Europe and topped the US 'Billboard' Hot 100. In the UK, due to chart protocol regarding double A-sides, it was the first Beatles single since "Please Please Me" in 1963 to fail to reach No. 1 on the Record Retailer chart. In November 1967, "Penny Lane" was included on the US Magical Mystery Tour album. In 2021, 'Rolling Stone' magazine ranked the track at No.280 on its list of the "500 Greatest Songs of All Time". In 2006, 'Mojo' magazine, a popular music magazine published monthly in the United Kingdom, ranked the song at No. 9 on "The 101 Greatest Beatles Songs" chart.