Images courtesy of WH

Recent appearances:
PCGS AU-55 and Del Bland graded VF-25.  Ex - Ira & Larry Goldberg Coins & Collectibles, Inc.'s "Benson Collection, Part I", February 16, 18-20, 2001, Lot 256, " 'Head of 1793', Sheldon-19B, High Rarity-4, illustrated, sold for $14,375.00, Ex: Purchased from a coin shop in Peoria, Illinois by Jerry W. Wienzierl, Jr. 2/7/99; Thomas D. Reynolds 3/1999: Denis W. Loring 2/2000; Robert C. Clark; 2000 ANA (Bowers and Merena Galleries):215."

Fine-12, Corroded.  Ex - Heritage Numismatic Auctions, Inc.'s "Long Beach Signature Sale", May 31-June 2, 2001, Lot 5364, "S-19b, Head of 1793", not illustrated, sold for $230.00 

ANACS Net VG-8, Fine Details, Corroded, Burnished.  Ex - Heritage Numismatic Auctions, Inc.'s "Long Beach Signature Sale", May 31-June 2, 2001, Lot 7482, "S-19b", not illustrated, sold for $661.25

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

"Walter Breen's Complete Encyclopedia of U.S. and Colonial Coins" by Walter Breen

Relevant collector organizations:
Early American Coppers Club