Varieties:
   Plain Edge - Unique
   Reeded Edge - Six known

Off-Metal issues:
   None known

Notes:
Obverse - light vertical crack from the bottom edge, through the Indian's neck, through the G of MINING to the border.  Another light break runs from the rim, through the left upright of the M of COMPANY, into the field.

Reverse - shattered.

Images courtesy of 

Known examples:
1. U.S. Mint Cabinet - National Numismatic Collection at the Smithsonian Institution.  Reeded edge (Breen incorrectly lists this as a Plain Edge - see his #7774)

2. Henry Chapman, Jr. - Virgil Brand in 1920 - Newcomer - Josiah K. Lilly - National Numismatic Collection at the Smithsonian Institution.  Reeded edge.

3. Louise Erna Brand in 1966 - John J. Ford.  Possibly ex - Jacob Fishel (who claimed to be a descendant  of one of the minters) in 1908 - Virgil Brand.  Reeded edge.

4. W. Elliott Woodward (1884) - Capt. Andrew Zabriskie (1909) - Col. James W. Ellsworth - John Work Garrett - Bowers & Ruddy Galleries sale of the Garrett Collection, March 1980, Lot 885, "257.6 grains.  EF-40", plated, sold for $270,000 - Donald Kagin - anonymous collection - resold in 1999 by Donald Kagin into another anonymous collection.  Reeded edge.

5. Newcomer collection (per Saul Teichman) - Charles Williams (possibly acquired from B. Max Mehl) - Abe Kosoff and Sol Kaplan in 1951 - Lammot DuPont - Willis DuPont - stolen on October 5, 1967 and never recovered.  Plain edge.

6. Newcomer collection (per Saul Teichman) - Charles Williams (possibly acquired from B. Max Mehl) - Abe Kosoff and Sol Kaplan in 1951 - Lammot DuPont - Willis DuPont - stolen on October 5, 1967 and never recovered.  Reeded edge.

7. Spink & Son (of London) in August 1914 - Virgil Brand - Armin Brand - Jane Brand Allen - Auctions by Bowers & Merena, Inc. "Brand II", 1984, Lot 1539, sold for $104,500 - Kenneth Goldman - anonymous collector, who misplaced the coin in a pair of golf shoes, which were later donated in 1998 to the Jaycees of Fort Pierce, Florida in response to a call for tornado relief.  The coin was recovered by Patricia May, one of the relief workers, who took the coin home and placed it in a desk drawer where it sat for three years, even being overlooked during a robbery.  While surfing the Internet, May discovered how valuable the discarded coin was and arranged to have it returned to its rightful owner through the Professional Numismatists Guild and members Doug Winter and Donald Kagin.  Reeded edge, struck over a J.S. Orsmby $10!

Sources and/or recommended reading:
"Walter Breen's Complete Encyclopedia Of U.S. And Colonial Coins" by Walter Breen

"Private Gold Coins and Patterns of the United States" by Donald H. Kagin

May 24, 2001 Press Release from the Professional Numismatists Guild

"Coin World", June 25, 2001, pages 1 and 100