Harriet Tubman

A newly discovered photo of abolitionist Harriet Tubman when she was a much younger woman will be sold at auction in New York City next month.

The photo was found in an album owned by another abolitionist, according to the curator of an auction house.

“There are very few known photographs of Harriet Tubman, and of those, most picture her in old age,” explained Swann Auction Galleries, in a statement emailed to Fox News.

Tubman’s photo will be included as part of a “carte-de-visite” album alongside photos of other well-known abolitionists from that era.

“This carte-de-visite from the late 1860’s shows a new side of this iconic and heroic American figure, as a much younger woman in the prime of her life, shortly after the end of the Civil War,” said Swann Auction Galleries.

The album is expected to fetch an estimated $20,000 to $30,000.

Tubman was a runaway slave who fled north in 1849. She returned to help lead 300 slaves to freedom as conductor of the underground railroad.

February is Black History Month, also known as African American History Month in America.