This lot consists of seven pieces of the original tube of large-character greenstamped green cakes from the 1950s, which are preserved in dry warehouses. The production period of the large-character green-stamped round tea was from the 1950s to the mid-1960s. The large-character green seal is very similar to the later red seal packaging graphics. From the late 1950s to the late 1960s, the Menghai Tea Factory mainly produced black tea, green tea and Pu-er round tea. Pu-er tea products are mainly the later red-seal and large-character greenseal round teas, especially the large-character green-seal round tea has become the key tea product. The production of Big Character Green Seal Round Tea takes a long time, the source of tea green tea is wide, and the quality and charm are also varied. This original tube of green cake with large characters and green printing from the 1950s has clear lines, bright golden color, tea surface covered with yellow buds, and a strong orchid fragrance. The tea base blend is excellent, and the style of the tea is more bud-heavy. It uses the best Yiwu Zhengshan tea cyanine. After aging, it has rich layers. The aroma of old age and camphor are intertwined. After drinking, the cheeks will be filled with fluids. Renowned Pu-er expert, Deng Shihai recommended this particular version as "the successor tea of the early Red Mark and Tong Qing Hao."