Technical Details:

On November 22, 2007 China National Philatelic Corperation issued a first-day cover carrying a two-piece set of specail stamps , "Gongga Mountain" and "Popocatepetl" , with a total face value of 2.40yuan.

Technical Details:
Serial number: 2007-25
Values in set: 2
Denomination: 2.40 yuan
Date of issue: November 22, 2007
Designer of stamps: Xia Jingqiu and Arciniega Hector Tenorio(Mexico)
Photographer: Wang Jianjun for (2-1)
Editor in Charge: Zhao Lei
Size of stamp: 50 * 30 mm
Perforation: 13
Sheet composition: 12
Size of sheet: 240 * 150 mm
Printing process: offset
Printer: Shenyang Posts and Telecommunications Printing House , Liaoning Province

(2-1)T　　　　　　　　Gongga Mountain　　　　　　　　　　　　　　　　　1.20yuan
(2-2)T　　　　　　　　Popocatepetl　　　　　　　　　　　　　　　　　　　1.20yuan