Ettore Sottsass, 'Esperienze con la ceramica', Domus, no. 489, August 1970, p. 51 Fulvio Ferrari, Sottsass: 1000 Ceramics, Turin, 2017, p. 145, fig. 752, p. 150, fig. 781-82
Vase, model no. YP33a, and ashtray, model no. YP1, from the 'Yantra di Terracotta' series
1969-1979 Glazed earthenware. Vase: 31.5 x 22.4 x 12.6 cm (12 3/8 x 8 7/8 x 4 7/8 in.) Ashtray: 7.6 x 15.6 x 13 cm (2 7/8 x 6 1/8 x 5 1/8 in.) Distributed by Design Centre, Milan, Italy. Underside of each signed SOTTSASS/Y / 33 / A and SOTTSASS/YP / 1 respectively.