This is probably my all time favorite piece so far. Made about 5 years ago and sold through Ceramic Art Gallery, Sydney to a collector. The influence behind it was Venturi's studies of fluid flow principles that are used by engineers to this day. Hence the title "Venturi form". In reality it is only half a venturi and a blocked one at that but, hey! I said "influence", not rules. It was about 500mm diameter from memory, about as big as I can successfully fire a pure copper red in my current kiln. Over that size I start getting "burnouts" from the flame. Some of those look great but not on this form - at least not to my eye.