This very large cobalt blue porcelain insulator was probably used for high voltage electrical power lines. Very rare, we haven’t been able to find another one like it online. The color of the glaze is a brilliant cobalt blue, and the entire piece is in excellent condition with no chips or cracks. The insulator is stamped ALUMINA on the bottom, and there is an “A” impressed on the side. The insulator stands 9.75 inches high and the bowl top is 7.5 inches in diameter. Depth of the bowl is six inches. We think the insulator makes a gorgeous planter, and you could even bury the sand-covered narrower bottom in the ground and just have the bowl showing if you like. A beautiful and unusual pop of stunning color for your garden.
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