HAARLEM, Netherlands -- A rare handwritten poem signed by Anne Frank sold at auction Wednesday for 140,000 euros ($148,620).

In a sign of the enduring popularity of the Jewish diarist who became a symbol for Holocaust victims, the sale price, which doesn’t include the auctioneer’s commission, was nearly three times the upper limit of the Dutch auction house’s pre-sale estimate.

The eight-line poem, half of which was copied from a Dutch book of verse, is dated March 28, 1942, shortly before Anne and her family went into hiding from the Netherlands’ wartime Nazi occupiers in a secret apartment in an Amsterdam canal house.

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It was sold to an online bidder, whose identity wasn’t released.

The poem was accompanied by a letter of authenticity from the seller, Anne’s former school friend, Jacqueline van Maarsen. The poem is addressed to Van Maarsen’s late sister, Christiane.

This photo taken on November 21, 2016 at the Bubb Kuyper auction house in Haarlem, Netherlands, shows a rare handwritten poem by Anne Frank, penned shortly before she went into hiding from the Nazis, addressed to “Cri-Cri” or Christiane van Maarsen, signed by the Jewish teenager and dated March 28, 1942. Getty

Jacqueline van Maarsen also has a poem written by Anne that was addressed to her.

“I know that my sister was not as attached to this verse from Anne to her as I am to the verse Anne addressed to me, and that is the reason that I am now putting it up for sale,” Van Maarsen said in a letter accompanying the poem.

Auction house Bubb Kuyper put a presale estimate of 30,000-50,000 euros ($32,000-53,000) on the poem.

Anne Frank Foundation spokeswoman Maatje Mostart said there is no doubt about the poem’s authenticity.

“Jacqueline was an important person for Anne,” Mostart said.

Mostart said it is “very special” for a piece of Anne’s handwriting to come up for auction, but added that the foundation didn’t plan to bid for the poem.

Anne and her family were betrayed and captured late in the war and deported. Anne died in the Bergen-Belsen Nazi concentration camp at age 15, shortly before it was liberated by Allied forces.

Her father survived the war and published her diary, which went on to become a global best-seller.