Remarkable old Tube maps show how London Underground network has changed over the past 100 years

These remarkable old Tube maps reveal just how much the London Underground network has evolved over the past 100 years. The historic diagrams provide a fascinating insight into the development of the capital’s iconic underground system since it first began operations in 1863. Free-hand drawings and calligraphy were used to create the first maps for the expanding Tube network, with the earliest one featured in this article dating back to 1925.

Source: Remarkable old Tube maps show how London Underground network has changed over the past 100 years | London Evening Standard