1997-19, The City Wall of Xi’an《西安城墙》
1997-19, The City Wall of Xi'an《西安城墙》 Stamp Title: The City Wall of Xi'an Scott No: 2806, 2807, 2808, 2809 Serial number: 1997-19 Values in set: 4 (4-1), Surrounding Tower, 50 fen, 50*30mm (4-2), Arrow Tower, 50 fen, 50*30mm (4-3), Watch Tower, 150 fen, 50*30mm (4-4), Corner Tower, 150 fen, 50*30mm Date of issue: [...]