"Antique Italian Porphyry Mortar "
ANTIQUE ITALIAN PORPHYRY MORTAR Rome, 16th/17th century Porphyry
19 x 23 x 23 cm
7 1/2 x 9 1/4 x 9 1/4 in
Provenance: Sotheby Parke Bernet Florence, 21 October 1976, page 36, lot 56, ill.