Would a Victoria line extension into South London along with the Bakerloo line be beneficial? : r/LondonUnderground

Rare version of Harry Beck's iconic Tube map emerges for sale for £20,000

Victoria line, UK Transport Wiki

Tube map alex4D old blog

Jonn Elledge: Which is London's fastest Tube line? - OnLondon

The Bakerloo Line Is Extending Further Into South London : r/transit

No more excuses: Bakerloo Line extension vital to connect south London : r/ london

London Tube map of TFL gets its own way

Bakerloo line extension - Wikipedia

Tube Financial Crisis: Why Closures Rarely Save Money - London Reconnections