By A Mystery Man Writer
Only five such shells have been found at the famed battlefield since 1980.
Alfred E. Lee of the 82nd Ohio at Gettysburg
Civil War-era unexploded artillery shell found at Gettysburg
Whose Father Was He? (Part Five) - The New York Times
Live Civil War artillery shell found at Gettysburg, 'could have
Gettysburg Archives, Page 2 of 28
An explosive discovery: Worker uncovers Civil War shell at
History of the Fifth regiment of Rhode Island heavy artillery
Whose Father Was He? (Part Five) - The New York Times
Unexploded artillery shell unearthed at Gettysburg. It may have been a case of friendly fire