In 1767, France issued 1.6 million copper Sols (valued at 9 Deniers) for use in the French Colonies in the Caribbean.  The vast majority of these were counterstamped with an oval punch with the letters "RF" (Republique Francaise).  Many of the counterstamped piece ended up in the American Colonies, where they circulated at the value of one Cent.  Because of their presence in "American" change, they are considered part of the American Colonial series, despite their manufacture overseas.

Images courtesy of Superior Galleries

Significant examples:
PCGS MS-64 Brown (illustrated above).  Ex - Superior Galleries New York ANA Sale, August 1-3, 2002, Lot 52, illustrated, where it was described as follows: "1767-A French Colonies Copper Sou (Sol de 12 Deniers). Breen-700. PCGS graded Mint State 64 Red and Brown. Frosty golden light tan fading to bluish steel brown on the highpoints, a third of the golden mint color remaining. The color suggests this planchet may be closer to brass than copper. Sharply struck and free of defects. Breen calls uncounterstamped examples such as this one "rare in all grades, prohibitively rare choice." This example certainly fits into the "choice" category.", sold for $7,475.00

PCGS MS-62 Brown.  Ex – American Numismatic Rarities, LLC’s “The Classics Sale,” July 25, 2003 , Lot 14, "Breen-700, no counterstamp", illustrated, not sold

Recent appearances:
PCGS AU-58 (illustrated above).  Ex - Ira & Larry Goldberg Coins & Collectibles, Inc.'s "Pre-Long Beach Sale", September 23 & 24, 2002, Lot 44, illustrated

PCGS EF-40 (illustrated above).  Ex - Ira & Larry Goldberg Coins & Collectibles, Inc.'s "Pre-Long Beach Sale", September 23 & 24, 2002, Lot 45, illustrated

Sources and/or recommended reading: