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| Lettering on the Rim |
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Rolling letters on the rim of coins
before or after casting.
The 50th Anniversary of the Founding of the PRC 1/2oz.
gold coin has ＾ZHONG GUO￣ on the rim. |
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| Etching Dies |
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Use special chemical reagent in the
polishing process to achieve an extraordinary shine effect.
The silver coin celebrating the centenary of the discovery
of the Dunhuang Scripture-Keeping Cave adopt this technique. |
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| Skewed Tooth |
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For anti-counterfeiting purpose,
we use special pressing method in the edging process to
make the angle of the sawtooth bigger or smaller than
90≧.
The Anniversary of Beijing's Successful Bid for Olympic
Games commemorative silver medal issued in 2002 adopt
this technique. |
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| Archaizing |
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The surface of the coins are sulfured
for a dim and black effect of ancient coins.
The 2001 Beijing International Coin Exposition adopt
this technique. |
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| Rimless |
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Cancel the traditional blank rim
for a special artistic effect.
The proof gold panda coin issued in 2001 adopt this
technique. |
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| High Relief |
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Compare to bass-relief, high relief
is used to represent a more vivid layered effect.
The 2oz. Dunhuang Grotto Art commemorative silver coin
adopt this technique. |
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| Latent Engraving |
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| Coins minted with this technique
are: Macao¨s return to China commemorative gold and silver
coins (the 1st set) issued in 1999, and the Mid-Autumn
Festival commemorative silver coin issued in 2001. |
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| Hologram |
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Hologram is also being called laser
engraving. It uses high-energy laser beam to engrave highly
precise lines on the surface of moulds, enable coins to
shine with multilayer rays.
The 2002 Guanyin Commemorative Gold Coin adopt this
technique. |
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| Colored |
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Colored refers the technique of combining
traditional painting art with coinage technique, print
colors onto the surface of coins through special forme.
The 2002 Chinese Guiwei Year (year of the sheep) 1/10oz.
gold coin adopt this technique. |
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| Abnormal Shaped |
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Round is the traditional shape of
coins. To embody innovations and represent special themes,
Chinese Precious Metal Commemorative Coins adopt various
shapes, such as rectangle, sector, quincunx, polygon,
and so on.
The 2002 Year of Horse Commemorative Coins adopt the
technique of abnormal shaped. |
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| Gilding |
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To meet the requirement in design
and aesthetics, coiners gild the coins partially with
other kinds of metal.
The 2001 Celebrating the Success of Beijing¨s Bid for
Olympic Games adopt this technique. |
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