1991 China World Cultural Figures 10 Yuan 27 g Proof Silver Coin. National emblem of China. Columbus; Mark twain; Mozart; Einstein. Response time during China holidays and weekends maybe longer. About Notes & Coins. The actual note may have a different serial number, signaturs and prefixs. Please use the image as a reference only. The notes and coins we sell are 100% Real. It will take about 7-15 days for the project to be sent from China to the United States, or longer under special circumstances. The project will be sent from China to other countries for about 7-30 days, special cases or special circumstances.