官窑瓜棱花口盘：拍品尺寸：直径：17.6cm，高：4.2cm，底径：8.3cm。 澄泥为范，极其精制，釉色莹沏。有蟹爪纹 ，紫口铁足；胎色较深，类铁，故而有铁胎（黑胎）之称。胎质致密、细腻、光滑。 本器物有“紫口铁足”的现象。器物的口沿做得比较尖，器足基本是刮釉垫烧。这样以来，口沿处的釉水就会自然往下走变稀变薄而呈现出胎骨的原色，足部自然也是露出胎骨色，这就是“紫口铁足”的真正原因。 “南官”皆有纹（蟹爪纹），即开片，无纹者甚罕（传世整器中尚无发现）！粗开片多以深黄、黄褐、墨色为多见，细开片呈灰白色，似冰开裂之纹，称做“冰裂纹”。---------------------------------------- Guanyao melon flower mouth plate: Lot size: diameter: 17.6cm, height: 4.2cm, bottom diameter: 8.3cm. Solid mud is a standard, extremely refined, glaze color Ying. Crab claw pattern, purple iron foot; fetal color darker, iron-like, so there are iron tires (black tires) known. The fetal material is dense, delicate and smooth. The artifact has a "purple iron foot" phenomenon. The rim of the utensil is sharpened, and the foot is basically a squeegee. In this way, the glaze water at the mouth will naturally go down and thin, showing the primary color of the fetus, and the foot naturally reveals the color of the femur. This is the real reason for the “purple iron foot”. "South officials" are all patterns (crab claw pattern), that is, open film, no pattern is very rare (handed down the entire device has not been found)! Roughly open films are mostly dark yellow, yellowish brown and black. The fine open films are gray and white, like the cracks of ice, called "ice cracks."