This map is from the 1895 Cram's Standard American Railway System Atlas 1895 - Published by George F Cram 1895.
The larger open full 2 page map is: Victoria
The reverse half page map is: Queensland and South Australia
Untrimmed open (2 page) measures aprox: 25" x 17.5" - half page map measures aprox: 12.5" x 17"