Dear Sirs and Madams, these stamps were issued in the 1950s and 60s after the founding of the People's Republic of China, featuring Tiananmen Square as their subject. There are 128 stamps in total: 5 stamps in the 5000 series, 8 in the 3000 series, 11 in the 2000 series, 9 in the 1000 series, 41 in the 800 series, 5 in the 500 series, 8 in the 400 series, 2 in the 300 series, 21 in the 200 series, and 18 in the 100 series. If you are interested, please make a bid. Thank you!