[January 1950] Diagram of Lines
This data has been verified against a physical copy of the map.
Series
Standard Pocket Map
Dated
January 1950
Publication date
Edition
Variant
Designer
Harry Beck
Cover title
Diagram of Lines
Cover design
Cover artist
Publisher
Printer
Johnson, Riddle & Co Ltd
Print code
449/858M/500,000
Reference number
Material
Card (thin)
Dimensions
Folded: 76mm X 150mm Unfolded: 228mm X 150mm
Notes
Shows proposed extensions to Alexandra Palace (Northern Line), Ongar (Central Line) and Camberwell (Bakerloo Line). Shows proposed link between Finsbury Park and Highgate (Northern Line).
This map was also issued with a tri-lingual (French/English/German) WELCOME paper wrap-around.
Images
![[January 1950] Diagram of Lines](https://um-prod-map-img-cdn.b-cdn.net/424/conversions/8c600f3a-6dee-4016-93b3-75de595f631f-preview-1x.jpg "[January 1950] Diagram of Lines")
Outside
![[January 1950] Diagram of Lines](https://um-prod-map-img-cdn.b-cdn.net/813/conversions/928e9c3a-2bb2-48e2-8a60-cade9bedd4fc-preview-1x.jpg "[January 1950] Diagram of Lines")
Feature: Proposed extensions on the Northern line
![[January 1950] Diagram of Lines](https://um-prod-map-img-cdn.b-cdn.net/814/conversions/928e9c4c-d138-45d6-9621-8a2305e64b04-preview-1x.jpg "[January 1950] Diagram of Lines")
Feature: Proposed extension on the Central line
![[January 1950] Diagram of Lines](https://um-prod-map-img-cdn.b-cdn.net/815/conversions/928e9c68-4f59-485e-99d6-6a60404fe0db-preview-1x.jpg "[January 1950] Diagram of Lines")
Feature: Proposed extension on the Bakerloo line
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