R1 Tian'anmen (1st Issue) R2 Tian'anmen (2nd Issue)  R3 Tian'anmen (3rd Issue) details details details   R4 Tian'anmen (4th Issue) R5 Tian'anmen (5th Issue) R6 Different Designs details details details   R7 Tian'anmen (6th Issue) R8 Workers, Farmers & Soldiers R9 Tian'anmen (7th Issue) details details details     R10 Flowers R11 Revolutionary Histroric Sights (1st Issue) details details     R12 Revolutionary Histroric Sights (2nd Issue) R13 Beijing Constructures details details     R14 Revolutionary Histroric Sights (3nd Issue) R15 Transportation details details     R16 Revolutionary Histroric Sights (4th Issue) R17 Beijing Buildings R18 Industries & Agriculture details details details     R19 Beijing Telecom Building R20 Beijing Sightseeing R21 China Landscape (Engrv.) details details details     R22 China Landscape  R22A  China Landscape (Tag) R23 Folk House (1) details details details     R24 Grotto Statuary Art R25 Folk House (2) R26 Folk House (3) details details details     R27 Folk House (4) R28 Greatwall (1) R29 Greatwall (2) details details details     RW Definitive in Culture Revolutionary Period