Where can I find postcards in Changzhou?

According to Baidu map, there are postcards in the following places in the city:

1, Mid-Levels Bookstore (New Century Mall Store), located in New Century Mall, North Street, Zhonglou District, Changzhou City, Jiangsu Province 14F. There is a Mid-Levels Post Office in Mid-Levels Bookstore, which contains postcards with assets and postcards with assets. Postcards without assets can be posted on the postcard wall, and those with assets can be mailed.

2. Changzhou Post Office (Guanhe Middle Road Store) is located in Room 6 12, Postal Hub Building, No.8 Guanhe Middle Road, Tianning District, Changzhou City, Jiangsu Province. Postcards of this post office are issued by the Ministry of Posts and Telecommunications and stamped with "People's Post of China" and postage symbol. Customers can buy postcards at the window of the post office.