古金鑒寶知識庫
整理銀元、舊紙幣、郵票、黃金與古玩回收判斷重點，讓賣家在發圖前先理解版別、品相、包漿與市場成交如何影響估價。
Hello everyone, I'm a buyback Shang from Gujin Jianbao. Whenever a rare"Xuantong Yuanbao"appears on the auction market, its transaction price often causes a ...
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When the Kwangtung Dragon Dollar was issued in 1890, other provinces scrambled to mint their own versions, further disrupting the...
Only 4.41 million of the 1980 Year of the Monkey stamps were actually qualified, and there are only 32 surviving examples of the ...
Modern refining loss is already below 0.5%, yet some gold shops still deduct 3 to 5% for refining loss as net profit. A 30g brace...
The final price of the same official kiln porcelain can vary greatly depending on whether it's auctioned in Beijing-Tianjin, Hong...
Dear collectors and esteemed guests, good afternoon! Today,"Gu Jin Jian Bao"presents an in-depth article that aims to analyze the...
Beginning with the first Guangxu Yuanbao minted in Guangdong in 1889, silver coins from the Qing Dynasty, Republican Era, and Peo...
