Giant Panda - China stamps

The following are some of the panda stamps I have, which were issued by China:

1) T.106M Giant Panda (Souvenir Sheet)
Technical details:-
Scott No: 1987
Serial number: T106M
Date of issue: May 24, 1985
Size of S/S: 74*80mm
Stamp of S/S: 40*60mm
Perforation: 11.5
Printing process: Photogravure
Printing House: Beijing Postage Stamp Printing Works

On the right hand side are the 4 chinese words: 拯危继绝, which means to rescue the panda from the danger of extinction.

2) N57-62 Giant Panda (set of 6)
Technical details:-
Scott No: 1108-13
Serial number: N57-62
Values in set: 6
Date of issue: January 15, 1973
Denomination: 93 fen
Designer: Wu Zuoren, Xu Yanbo
Size of stamps: 30*40mm for N57, N58, N61, N62;40*30mm for N59, N60
Perforation:11.5*11 for N57, N58, N61, N62;11*11.5 for N59, N60
Sheet composition: 50(10*5) for N57, N58, N61, N62;50(5*10) for N59, N60
Printing process: Photogravure
Printing House: Beijing Postage Stamp Printing Works