Bronze mirror how to identify the generations of bronze mirrors have what characteristics how to identify

General bronze mirrors in the casting, more "open" and "casting type" two methods. "Open" is only a mirror model, no injection mouth and injection groove, casting mirror model flat, from the top into the solution. Often seen in the excavation is "co-casting type", that is, each mirror has two pieces of pottery Fan, mirror back Fan carved pattern, the center of the concave part of the cast mirror knob, and with the Fan homogeneous clay for a short thin stick-shaped "sand core", embedded in the middle of the mirror Fan. Mirror Fan carved into a concave plane, and then the two Fan into one. Mirror casting, the injection mouth upward upright, slowly injected into the copper solution, to be cooled down after the solution, take out the casting of the mirror, after grinding can be identified.

Spring and Autumn and Warring States period, there are also delicate and exquisite floor pattern copper mirror. This kind of copper mirror is the use of sub-casting method, the mirror and mirror back decoration cast separately, and then clamped together. This composite copper mirror, after the Warring States is basically extinct.

Qing Qianlong years, the Palace Office of the collection of ancient mirrors on the front side of the Palace more treatment, in order to achieve the effect of re-identification. Part of the ancient mirror surface on the use of composite methods, re-casting a mirror, grinding, and then adhered to the front of the ancient mirror. Of course, this composite and the Spring and Autumn and Warring States period of the composite mirror is still a big difference

The invention of the Han Dynasty translucent bronze mirror is another milestone in the mirror casting process. Translucent mirror invented in the Western Han Dynasty, the shape is the same as the ordinary mirror. But when the light shines on the mirror, the mirror opposite the wall, will reflect the image of the back of the mirror pattern and inscription, the ancients called "phantom mirror". Tang and Song dynasties, with the development of casting technology, copper mirror breaks the traditional round and square formulas, according to the use, decoration and other requirements, casting a mirror with a handle, as well as eight rhombus, rhombus, eight arcs, quadrilateral commissure angle, rounded square, sub character, cloud plate shape, chicken heart-shaped copper mirror. As for the Song Dynasty by the influence of the Sung Ku fashion, casting the tripod, bell-shaped bronze mirrors, more style of the times. Ancient Chinese copper mirror size varies greatly, but can be roughly divided into large, medium and small three categories. Small copper mirror size is generally in 3 centimeters ~ 8 centimeters, they are small and thin, with a cord tied to the waist, carry. Medium-sized bronze mirror size in 10 centimeters ~ 39.4 centimeters, they are heavy and exquisite, when used or hung on the wall, or placed on the mirror table