Recent appearances:
NGC MS-65 Brown.  Ex - Superior Galleries "Pre-Long Beach" Elite Coin Auction, May 25-27, 2003, Lot 521, sold for $12,650.00 Ex Lester Merkin 3/67:177- C. Douglas Smith- Gordon J. Wrubel- New England Rare Coin Galleries FPL #4, 1975- Gene Reale, Sotheby's (New York) #7083, 1/15/98:38- Dr. Wallace Lee. 

NGC AU-55.  Ex - Bowers and Merena Galleries' Robert W. Schwan Collection Sale, October 26-27, 2000, Lot 139, "Sheldon-249, Corrected Fraction Brown", illustrated, unsold

AU-53, Corrosion Spots.  Ex - Heritage's "Long Beach Signature Sale", May 31-June 2, 2001, Lot 5385, "100/000", plated, sold for $1,207.50

Del Bland graded VG-10.  Ex - Ira & Larry Goldberg Coins & Collectibles, Inc.'s "Benson Collection, Part I", February 16, 18-20, 2001, Lot 357, "1/100 over 1/000.  Sheldon-249, Rarity-2.  Ex: Howard R. Newcomb; J.C. Morgenthau & Co. #458 2/45:408 at $11.50.", illustrated, sold for $345.00

Sources and/or recommended reading:
"Penny Whimsy" by Dr. William Sheldon

Relevant collector organizations:
Early American Coppers Club