(They sometimes accidentally replaced Boissezon with Boissevain, because both were contemporaries and diplomats in Shanghai, only Boissezon was French and Boissevain was Dutch)
Street view from 2014, 复兴西路36号, :
It always makes me happy when a stranger in Shanghai's street suddenly lifts his hat and introduces himself. Hello, Nielsen Villa! From the time of its construction in 1924, the villa had different residents – A. E. C. Thompson, Mrs. A. L. Austin, E. C. Traerup, Mrs Van den Berg, and lastly H. Klyhn as of 1947. Now it is the plush home of the Shanghai branch of the Hangzhou auction house 西泠印社拍卖有限公司.
See other then and now comparisons.