Here's the listing on the Chip Guide -- shown as "Unidentified". Different dates on the C&S mold vs. Taylor mold.
http://www.themogh.org/cg_chip2.php?id=UFCSAR&sort=type

Also, the artwork is shown on the new art gallery pages posted last week ... but no additional clue as to origin.

For what it's worth, I've wondered if the 2 marks to left & right of main artwork are 2 letters -- maybe "E" and "K or H" ? Could be owners initials, but maybe nothing at all.