Recent appearances:
"AU-50".  Ex - Superior Galleries "Pre-Long Beach" Elite Coin Auction, May 25-27, 2003, Lot 460, sold for $7,475.00 Ex Homer K. Downing, 1952 ANA Sale, New Netherlands Coin Co. #38, lot 1820-C. Douglas Smith-Dr. Robert A. Schuman.  
 
NGC EF-45 Brown.  Ex - Bowers & Merena Galleries' "The Cabinet of Lucien M. LaRiviere, Part II", March 15-17, 2001, Lot 2466, "2nd Hair Style" sold for $1,610.00

VF-25.  Ex - Bowers and Merena Galleries' Robert W. Schwan Collection Sale, October 26-27, 2000, Lot 109, "Sheldon-169, Second Hair Style", illustrated, unsold

Del Bland graded Fine-12.  Ex - Ira & Larry Goldberg Coins & Collectibles, Inc.'s "Benson Collection, Part I", February 16, 18-20, 2001, Lot 313, "Style 2 hair.  Sheldon-169, Low Rarity-3.  Cleaned and nicely retoned decades ago.", illustrated, sold for $632.00

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

Relevant collector organizations:
Early American Coppers Club