NAVIGATION

An Italian Porphyry Mortar and Pestle
The finely coloured specimen with turned concentric ‘ribbed’ rings
Porphyry
Italy
17th Century
SIZE: 15cm high, 21.5cm dia. - 6 ins high, 8½ ins dia. / pestle 16cm long - 6¼ ins long

Purchased Swiss auction circa 1991
Ex Private collection

See: ‘Porphyry, Red Imperial Porphyry, Power and Religion’, Dario del Bufalo, 2013; and ‘George Ortiz’, Sotheby’s, 1994, lot 241