In order to portray giant panda's black and white colors and their playfulness, Chinese coin designers and

minting specialist made great efforts in the innovation of panda coin's

design. Depending on their excellent artistic talents and skills, a special

patternmaking technique was invented, which perfectly displayed the

giant panda's characteristics. As the essential colors of giant panda,

black and white colors were especially difficult to cast in metal. Gold and

silver has only one color respectively. Casting two colors in one metal

became very difficult. Through repeated studies, experts found that the plane of gold and silver pieces

reflect different light which form different colors. Given a treatment that makes the plane as smooth as a

mirror, one angle of the plane reflects strong lights which becomes golden color; another angle reflects

drawn lights which becomes a darker color. Skillfully use the reflection effect to form the "white" color and

the "black" color, experts invented the reflection minting technique. This technique can depict giant pandas'

black eyes¡¢ legs and ears distinctly. The special artistic effect of black and white vividly depicts giant

panda's characteristics, and give panda coins a high artistic value. Later, experts invented a technique that

makes a more vivid depiction of giant panda's black and white colors with a greater stereoscopic effect by

sandblasting the shady side of reliefs. With this technique, people found a new artistic effect that later

helped to form a new technical standard of panda coin's production. Novel in design, advanced in minting

art, special in theme, exquisite in lines, double functioned both as a investment tool and a commemoration,

panda coins have developed a school of their own, and enjoy a worldwide popularity among coin-funs and

collectors.