Five Pieces of 'Chung Cha' Brand Pu-er Tea Cake in Simplified Chinese Characters, 1970s
A Blue Mark Pu-er Tea Cake, 1950s
Four Pieces of Pu-er Tea Brick Produced During Cultural Revolution, 1970s
Eight Pieces of 7582 Pu-er Tea Cake, Early 1980s
Three Pieces of Pu-er Tea Brick, 1970s
