The philatelic literature has long stated that seven of the stamps have been lost or destroyed through theft or mishandling. However, in 2007 a copy came to light that had not been seen since Eugene Klein broke up the sheet, and was offered for auction that June. The number of lost stamps then became six. Several others have been damaged, including one that was sucked into a vacuum cleaner. Apparently Green's wife mailed one which, while recovered, is the only cancelled sample. Indeed, no Jenny invert is in pristine condition, because Klein lightly penciled a number on the back of each stamp (from 1 through 10 in the top row to 91 through 100 in the bottom row) so that its original position on the sheet could be identified. For many years, only five examples, in fact, were known to have survived in never hinged condition. One of these is the locket copy, which, however has another condition problem: a corner crease at the bottom right probably inflicted while it was being enclosed behind glass.