The manuscript was believed lost until a piano score of the prologue turned up in Moscow in 2004.
The score was left behind when the composer moved to Paris and was believed lost until recently discovered buried away at the St . Petersburg Conservatory
Around 25 inches in diameter and made of hand-blown glass, the crystal ball was believed lost until it was discovered in a prop house maintained by the creator of the crystal ball, Kenneth Strickfaden.
The text was believed lost until last autumn, when her lawyer, Tonja Carter, discovered a copy among the author's effects, attached to an original manuscript of To Kill A Mockingbird.
The approximately 4,500 negatives by Robert Capa, David Seymour (Chim), and Gerda Taro had been believed lost until they resurfaced in late 2007.
Kilpin died in 1916, aged 46, and his grave was believed lost until a historian tracked it down.
Mr. Livingston, a pianist with a flair for modernism of all stripes, is to perform all of An theil's extant Sonatas -- including several that, until recently, were believed lost -- at the New York Public Library for the Performing Arts, where the manuscripts to those works reside.
The Franciscans then either volunteered or were asked to bury him in their church, and after it was demolished the remains of the king were believed lost forever – until they were rediscovered in 2012, a few feet under the surface of a council car park.
The negatives, believed lost, resurfaced in Mexico City in 2008.
The text wasn't printed until the 19th century, according to Tom Lintern-Mofe of Antiquates booksellers, and the original is now believed lost.
