This map can be found on page 187 of Baedeker's Handbook. This particular copy was made accessible by the Getty Research Institute and HathiTrust. Click here to read the catalog entry.
Heinrich Wagner & Ernst Debes (cartographers), “Tzarskoye Selo (plan),” The Imperiia Project, accessed May 29, 2023, https://imperiia.omeka.fas.harvard.edu/document/2475.