release began 1946-07-23. Stamps in this set can be recognized by the somewhat water-drop shape of the Arabic value tablets in the bottom corners of the stamps. These stamps were perforated 14, and issued without gum; nevertheless different papers and printing conditions give rise to several varieties. The eleven values in this set range from $20.00 to $5000.00. The usual range of surcharges exists. Tenth issue The tenth issue was once again printed in London by the De La Rue Co. It was released in May 1947, and is identified by the torches on either side of the portrait. Only four stamps are in this set. The lowest value, the $500.00 olive green is monocoloured, the other three ($1,000.00, $2,000.00 and $5,000.00) are bi-coloured. All the values have perforation varieties. The only overprint on this issue is the 2 silver cents on $500.00 for West Sichuan produced in 1949. It has four recognized varieties. Eleventh issue The eleventh issue is known as the "Plum Blossom" issue, and was also engraved and produced by the Dah Tung Book Co. in Shanghai. In this set the Arabic value is at the lower left of the stamp, the Chinese value tablet is vertically oriented in the upper right corner of the stamp, and the plum blossoms are drawn below the Chinese value tablet. Their release began on 1947-10-17. The stamps are perforated 14, and were issued without gum. Because different papers were used there are paper and size varieties for most stamps in this issue. There are numerous overprints on this stamp to reflect the currency revaluations that began in 1948 The issue may be divided into two groups. In the first group the 17 values are printed with cents and range from $150.00 to $500,000.00. There are two types of the $500.00 stamp. A further three values, $100.00, $350.00 and $700.00 were printed but not issued without overprints. The second group with 12 values began being issued on 1948-07-23 at the peak of the inflationary period. The values range from $20,000 to $5,000,000 with the cents omitted. The Gibbons catalogue treats this second issue as the Twelfth Issue. The twelfth issue below is then treated as the thirteenth. Twelfth issue The twelfth issue is very easily recognized because it is the only one in which Sun's portrait appears on a plain background. On 1948-08-20 the Gold Yuan replaced the Chinese National Currency