Recent appearances:
NGC MS-62 Brown.  Ex - Superior Galleries "Pre-Long Beach" Elite Coin Auction, May 25-27, 2003, Lot 512, sold for $6,900.00 Ex C. Douglas Smith 1958-Gene Reale, Sotheby's (New York) #7083, 1/15/98:35-Dr. Wallace Lee. 

"MS-60".  Ex - Superior Galleries "Pre-Long Beach" Elite Coin Auction, May 25-27, 2003, Lot 511, sold for $9,775.00 Ex Henry C. Hines-Homer K. Downing, 1952 ANA Sale, New Netherlands Coin Co. #38, lot 1904-C. Douglas Smith-Louis Helfenstein, Lester Merkin 8/64:27-C. Douglas Smith 1972-Gordon J. Wrubel-Douglas Kaselitz 7/13/75-C. Douglas Smith- Myles Z. Gerson-Bert Cohen 3/29/85-C. Douglas Smith-Dr. Robert A. Schuman, Superior 2/18/02:1263-Dr. Wallace Lee. 

NGC AU-55 Brown.  Ex - Bowers & Merena Galleries' "The Lake Geneva Sale", June 28-29, 2001, Lot 23, illustrated, sold for $1,150.00

AU-50 Corroded.  Ex-  Heritage Numismatic Auctions, Inc.'s "October 2000 Long Beach Sale", October 5-7, 2000, Lot 6642, "Sheldon-231", not illustrated, sold for $322.00

NGC EF-40.  Ex - Bowers and Merena Galleries' Robert W. Schwan Collection Sale, October 26-27, 2000, Lot 133, "Sheldon-321, Stemless", plated, sold for $563.50

EF40.  Ex - Superior Galleries "Pre-Long Beach Coin Sale", May 27-29, 2001, Lot 1138, illustrated, not sold

Del Bland graded Fine-15.  Ex - Ira & Larry Goldberg Coins & Collectibles, Inc.'s "Benson Collection, Part I", February 16, 18-20, 2001, Lot 347, "Stemless wreath. Sheldon-231, Rarity-1.  Ex: Ira S. Reed, privately 12/6/44 at $10.", illustrated, sold for $437.00

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

Relevant collector organizations:
Early American Coppers Club