A tintype photo of the Kid discovered in 2015 had an estimated worth of $5 million. "One day it may end up at an auction house somewhere. We'll see what happens," Abrams told the AP.

The 4-inch-by-5-inch tintype depicts Billy the Kid playing croquet in the summer of 1878. The only other known photo of the outlaw was taken in 1880 and sold for $2.3 million in 2010.

Experts have verified a tintype picture bought for just dollars is that of Billy the Kid and the man who killed him, Sheriff Pat Garrett. It’s a find that could be worth millions.

Legendary outlaw Billy the Kid had his “picture made” in Fort Sumner, N.M., about 130 years ago. A single, original tintype is the only authenticated photo of the Kid in existence today.

Old photos of Billy the Kid can fetch a fortune, ... The most famous of these few images is a tintype taken in 1879 or 1880 ...

A photo of the Western outlaw Billy the Kid, purchased for $2 at a junk shop, ... The 4x5 "tintype" shows the outlaw and members of his gang playing croquet near a small cabin.

A North Carolina attorney named Frank A. Abrams believes he’s in possession of a rare tintype that shows famed outlaw Billy the Kid with Pat Garrett, the sheriff who killed him in 1881.

WEBVTT RICHARDSON SHOWS US THE IMAGE, AND WHY IT TOOK SO LONG TO CONFIRM IT'S LEGIT. ROBERT: STAFF AT THE BILLY THE KID MUSEUM IN FORT SUMNER FIRST SAW THIS PHOTO ABOUT TWO YEARS AGO. SOMEONE ...

Experts now believe a photo purchased at a flea market for $10 shows Billy the Kid standing with the lawman who ultimately killed him, making the snapshot potentially worth millions.Frank Abrams ...

A photograph depicting Billy the Kid may have surfaced recently, after an anonymous man turned over a tintype image to a local historian. Skip to content NOWCAST KOAT Action 7 News at 11am ...

Experts now believe a photo purchased at a flea market for $10 shows Billy the Kid standing with the lawman who ultimately killed him, making the snapshot potentially worth millions. Frank Abrams ...