Technical details:

Scott No: 620-628
Serial number: C94, C94m
Values in set: 8
Date of issue: August 8, 1962
Denomination: 152 fen
Designer: Wu Jiankun
Size of stamps:
26.5*36mm for Value 1, 2, 3, 4, 5;
36*26.5mm for Value 6, 7, 8
Perforation:
11.5*11 for Value 1, 2, 3, 4, 5;
11*11.5 for Value 6, 7, 8
Sheet composition:
50(10*5) for Value 1, 2, 3, 4, 5;
50(5*10) for Value 6, 7, 8
Size of S/S: 108*146mm
Stamp of S/S: 52*62 mm
Perforation of S/S: 11.5
Printing process: Photogravure
Printing House: Beijing Postage Stamp Printing Works