The first record contract the Beatles ever signed is set to hit the auction block next month.

The document, signed by the band in Hamburg, Germany in 1961 during a recording session that produced the single "My Bonnie," will be auctioned at New York's Heritage Auctions on September 19, with its value estimated at $150,000.

"Not many people know that The Beatles started their careers in Germany," said Beatles expert Ulf Kruger.

"The Beatles had their longest stint in a club in Hamburg at the Top Ten Club.

They played there three months in a row, every night. The style they invented in Liverpool, they cultivated in Hamburg."

The item is being sold by the estate of Uwe Blaschke, a late Beatles historian who died in 2010.