For example, every piece of jade articles is carved and polished with a round tooling during the Red Mountain Culture era, whose identical characteristic is apparent. The lines are on and off during the Liang Che Culture period as the tools used for engraving are extremely sharp and thin. Other individual engraving techniques and features are like the double-ditch line in Shang dynasty, slant carving style in Chou dynasty and relief engraving in Chun Chiu period, etc. It is due to the so-called cultural stratums termed by geologists. Depth of the stratums will result in different soils, which produce various colors of jades and stones.
Readers can make comparisons from the actual examples listed in the book.
Briefly, this book emphasizes that the only tip to appreciate ancient jades is through real pictures as well as more comparisons and exercises as often as possible. As this book collects more than 1,500 pictures, which surpasses all writings on ancient jades in the bookshops currently by far, readers should be able to stand in the line of appraising ancient jades easily through this book. Our museum prepares delicate catalogs of curios cultural artifacts for our customers. Call us , you will get them.