SCG9377 - 🇨🇳 China – Sun Yat-sen 5¢ Green with Black Surcharge “50,000 Customs Gold Units”A classic Republic of China definitive featuring the portrait of Dr. Sun Yat sen in deep green, later surcharged in black with a large boxed 50,000 denomination during the wartime inflation period. The overprint includes additional Chinese characters indicating the new value, applied to revalidate older low denomination stocks. This issue is sought after for its historical context tied to economic upheaval and postal reform. A strong example for