Two interesting varieties of 2009 Harrison Presidential dollars from Philadelphia have been discovered by F. Michael Fazzari of Independent Coin Grading Service, who was prescreening quantities for grading and encapsulation. On one group of coins that he reviewed is a die crack under Harrison’s bust. Early stages show a small break in the rim continuing into the “9” and just touching the bust. On coins from a later die state, the crack becomes wider and longer, continuing through the President’s shirt and into his shoulder. read more here http://www.numisnews.tv/Fazzari-finds-Harrison-varieties.htm
A die crack is not a variety. A variety would be the same on every coin from the first coin to the last produced on the die. A die crack is just progressive die damage. Richard