The catalogue mentioned is not published in 1957, but in 1959–which is also evident from the paper quality, when the raw material used for paper production was also used for other purposes.
It is, of course, anything but complete, but reflects the state after many people either familiar with Xu Guangping or others in charge have removed–over a period of more than two decades–certain items from the holdings.
The published lists of book acquisitions by Lu Xun are ample evidence.
Many translations by Lu Xun provide evidence (either by explicit evidence, or by analysis of their texts) that his private book holdings have included a lot more books.
–Raoul David Findeisen (Comenius University in Bratislava, University of Vienna <raoul.findeisen@rub.de>