China 1972 STAMP set N49-52 Mint

Red Flag Canal

Technical details:

Scott No: 1104-07
Serial number: N49-52
Values in set: 4
Date of issue: December 30, 1972
Denomination: 32 fen
Designer: Yang Baizi, Xu Yanbo
Engraver: Sun Hongnian, Gao Pinzhang
Size of stamps: 27*40mm
Perforation: 11
Sheet composition: 56(7*8)
Printing process: Engraving and photogravure
Printing House: Beijing Postage Stamp Printing Works

SN: (4-1)
Title: The Foolish Old Man Who Removed Mountains (The spirit of Yu Gong Wanted to Move the Two Mountains)
Value: 8 fen

SN: (4-2)
Title: The Youth Tunnel (Youth Hole)
Value: 8 fen

SN: (4-3)
Title: Taoyuan Aqueduct (Peach Garden Bridge)
Value: 8 fen

SN: (4-4)
Title: A Canal Carved in the Cliffs (River in the sky)
Value: 8 fen