
Were the lifts out of service because of the repairs? Or did the flow of customers exceed their capacity? I've not found any answers.
The Glen Line building is in the center of the photo below:

Image: Harvard Yenching Libraries, 1923
“Thus we did approach by sea, like in old times, to watch all these things unfold.” Photo by Frederik G. Clapp., AGSL Collections…
Source: Virtual Shanghai. Closer – Bund and downtown: Dongjiadu and the Chinese City:
In a 1969 interview to the TWA Skyliner magazine, Emmanuel Gran, vice-president for architecture at Hilton International, stated that he had…