One lucky shopper stumbled upon the art find of a lifetime when he purchased a bundle of unidentified sketches at a rummage sale in Las Vegas. At the time, Andy Fields, 49, had no idea that he was buying what experts believe is a previously unknown work by Andy Warhol. That's why he paid less than $5 for it.

But now the early pop art sketch, thought to have been completed by Warhol when he was 10 or 11 years old, is up for sale on eBay for a whopping $1.9 million.

andy warhold

The pencil and graphite work dates back to the 1930s, featuring a cherry-lipped portrait of the American entertainer, Rudy Vallee. While it's been slapped with a hefty price tag, the sketch is being sold on eBay for a reason.

The drawing was never validated by the Warhol Authentication Board, the now defunct committee that formerly provided potential Warhol works with a stamp of approval. Since the board was unable to gather enough evidence on the Vallee work before it shut its doors, Fields has been left in art limbo, attempting to convince professionals that the sketch is the real thing.

"I've had experts from Sotheby's and Bonhams who are convinced it is original, without a shadow of doubt," Fields writes on the eBay entry. "Since submitting it to the Authentication Board I have done extensive research to prove beyond all reasonable doubt that it is genuine."

One reason to be hesitant about the provenance: The drawing was signed "Andy Warhol," a peculiar signature given the artist didn't change his name from Warhola until 1949. Field's explanation? "The way the experts have explained it is that Warhol never used to sign his early work... When he gave work away many years later it is highly likely he would have been asked to sign it." By then he would have been operating under the moniker Warhol.

The Vallee portrait is up for bid until August 7, so if you have a couple of million lying around you better act fast.

Earlier on HuffPost:

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  • No Title (Pensive Girl Resting Head on her Hand), c. 1951 ink and graphite on paper, 35,6 x 42,3 cm. Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Two Women at Automat Table and Two Bats), c. 1958/59 ink and graohite on paper, 60,7 x 45,5 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Portrait of a Man Resting his Chin on his Arms), c. 1951 ink and graphite on paper 30,5 x 31,8 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Stuart Preston), c. 1958 ink and graphite on paper, 61 x 47 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Female Head), c. 1957 ink and graphite on paper 35,1 x 36 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Questions All America is Asking), c. 1953 white and black ink and graphite on paper, 35,3 X 42,8 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Two Girls Holding Hands), c. 1954 ink and graphite on Strathmore paper 21,6 x 15,3 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (James Dean Look-Alike), c. 1957 ink and graphite on paper 45,9 x 30 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Two Hands Playing Piano), c. 1954 ink and graphite on paper 24,9 x 28,4 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Kneeling Girl (to left)), c. 1952 ink, gouache and graphite on paper, 42,8 X 35,1 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Tattooed Leg and Shoe), c. 1956 gouache, ink and graphite on paper, 121,5 x 45,4 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.

  • No Title (Two Ladies Standing Behind Fire Hydrant), c. 1958 gouache, ink and graphite on paper, 37,6 X 44,4 cm Courtesy of Daniel Blau Munich/London © Andy Warhol Foundation for the Visual Art Inc.