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Straight mouth,
wide shoulder, flat foot. Sectors connected on the belly.
An ingenious presentation of pigment combination: the shoulder and foot are
decorated with underglaze-blue broad banana leaf lines, where sea waves are
engraved on the body joined by underglaze-red dragon chasing after a pearl.
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Underglaze porcelain as we know it today is decorated with copper oxide with
a coating of transparent glaze applied on top. When burned in reductive
flames under high temperature, copper oxide becomes highly sensitive, and
can be easily volatilized. Note that production failure is substantially
increased when underglaze-blue pigment with a different melting point,
cobalt oxide, is being used at the same time for decoration. This is truly a
rare and sought after piece. |
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The underglaze-blue
pigment shows a diffused dark bluish green color with some green spots. Iron
rust marks are present at thickly glazed areas.
The majority white surface glaze with visible bubbles is tinted with green
and conveys a glittery, moist feeling.
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No glaze at the bottom; uneven dark iron rust is present. Moist and smooth
tactile sensations. |
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Since copper oxide is easily volatilized while under high temperature, an
untainted crimson is rare. Brush strokes frequently diffuse with occasional
black, green or yellow spots. |
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The imported
underglaze-blue pigment contains high iron oxide which leaves rust marks on
the glaze surface after combustion.
Clear bubbles with green and yellowish brown iron rust spots.
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Refined raw clay material used contributing to a smooth and pure white clay
quality. |