A copy of Bradshaw's Continental Railway Guide for the period. They're collectable, so find someone with/selling a copy and ask them to look it up. The 1913 edition was republished 'recently' and the journey is likely to have been roughly the same expensive price.

Alternatively, use the National Railway Museum's archives. Something like this should be within their 30 minute free query service as they should have the set of Bradshaws.

nrm.org.uk/ResearchAndArchive/enquiriesandvisiting.aspx