ETRUSCAN. THE PATTERN CLASS VASES OF THE "GRUPPO DI ORVIETO", GROUP OF ORVIETO,WASHINGTON PATTERN GROUP. BLACK-FIGURED FROM THE END OF THE 6TH CENTURY THROUGH THE FIRST QUARTER OF THE FIFTH CENTURY B.C. PURCHASED FROM THOMAS R. WILSON, 1904, WHO PURCHASED THEM FROM MANCINI IN ORVIETO, 1884-86. "ATTIC" SHIRLEY SCHWARZ, 1980.