Images courtesy of Ira & Larry Goldberg Coins & Collectibles, Inc.

Significant examples:
PCGS AU-50 (illustrated above).  Ex - Paul Arthur Norris - Ira & Larry Goldberg Coins & Collectibles, Inc.'s "Pre-Long Beach Sale", September 23 & 24, 2002, Lot 40, illustrated, where it was described as follows: "PCGS graded AU-50. Steel gray in color with traces of luster in the fields beneath. A decent strike, which is sharp around the periphery and displays a touch of weakness at the centers. We note faint horizontal lines on both sides which may have been from the planchet preparation process or perhaps adjustment marks, but they are scarcely visible regardless. Identifiable by a tiny edge flaw just above the Sun and to the right, which is also present on the reverse, but small enough to be hard to see in the PCGS holder. An important early French issue struck for Canada or the Louisiana Territory. Scarce this nice, and comparable to the Roper specimen (Stack's 12/83:182) in grade and quality."

Sources and/or recommended reading: