This bowl is 65mm high by 148mm diameter and weighs 1.38kg. From the weight and clarity, the material seems to have a high lead content. The bowl has been formed in a three-part mould, with the mould seams evident in the photos. The frosted finish on the outside, except for the nine irregularly-shaped "eyes", continues onto the base, which is not dead flat but instead has a slight annular depression between the rim and a circular central plateau. The inside of the bowl is smooth. The top rim is polished, but there are no signs of mechanical action, so it may just be smoothed by fire or open casting. The "eyes" are similarly clear without signs of mechanical polishing.
Q: How is it made, and by whom?