Rarely seen drawings reveal the Northern line’s history in a new book

A richly illustrated book about the history of the Northern line tells a familiar story, but with drawings and photographs that many people will not have seen before.This book focuses on some more unusual aspects of the Northern line’s history over its 130 years. In particular, it looks at the uncompleted wartime extensions, other proposed extensions, the express services that once operated on the line, and the deep-level shelters built in World War Two and intended for an express tube aft