SANTA MONICA (CBS) — A contract for a 1965 Beatles concert that states the group will not perform before a segregated audience has sold for more than $23,000.

The Nate D. Sanders auction house of Santa Monica says the contract was auctioned in online bidding that closed Tuesday. The buyer’s name was not disclosed.

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Sanders had expected the contract to fetch $3,000 to $5,000.

The document lays out the terms for the Beatles’ 1965 appearance at San Francisco’s Cow Palace.

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Among other things, it demands that 150 police officers be brought in to provide security.

The year before, the Beatles threatened to cancel a concert at Florida’s Gator Bowl after the band learned the audience was to be segregated. Band members agreed to perform only after officials assured them the crowd would be integrated.

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