Here it is, photographed more than a hundred years apart, c. 1910 and in 2020:
Address: 581 Zhonghua Road 中华路581号.
[More photos from November 2020...]
Modern images are by https://www.instagram.com/shanghaiheritage/
More historic photos of the fire station and watchtower on PastVu.
Other entries on the Xiaonanmen watchtower.
More "then and now" comparisons.