Plate XIII: Principal Triangulation

1858

Clarke, Alexander Ross, 1828-1914

The Making of England ... With maps

1885

GREEN, John Richard.

Ordnance Survey of England and Wales (Sheet 9), East Anglia

1935

Ordnance Survey, Great Britain

Ordnance Survey of England and Wales (Aeronautical map)

1941

Great Britain. War Office. General Staff. Geographical Section

Ost-Anglia. England Blatt Nr. 9. Militargeographische Objektkarten.

1941

Oberkommando der Wehrmacht (OKW) (Nazi German Supreme Command of the Armed Forces)

1:250k

Composite map: 49-51. The road from London to Okeham in Rutland Shire

1780

Ogilby, John (1600-1676)

Sheet 9 Eastern Counties (S.), uit: Maps of England & Wales : scale 4 miles to 1 inch / Ordnance Survey

1919

Ordnance Survey, United Kingdom

1:253k

Map Sheet 12

1815

Arrowsmith, Aaron

1:190k

Sheet 12

1818

Arrowsmith, Aaron

1:190k

A Map of Essex, Suffolk and Hertfordshire. Produced by British Railways

1948

British Railways. Eastern Region

1:135k