East Barnet Valley antique map with a diagram indicating the proposed changes in the County Boundary between Middlesex and Hertfordshire and also with regard to the Urban Sanitary District Boundary. A rare Ordnance Survey map by R. Owen Jones, Royal Engineer, produced for the Local Government Boundary Commission Report, 1888
East Barnet Valley was a local government district from 1863 to 1965 around the town of East Barnet. It was partly in the counties of Hertfordshire and Middlesex until 1889, when the Middlesex part was transferred to Hertfordshire. It was renamed East Barnet in 1935.
Boundary Commissions in the United Kingdom are non-departmental public bodies responsible for determining the boundaries of constituencies for elections to the House of Commons, and areas of local government.
The Local Government (Boundaries) Act 1887 (50 & 51 Vict. c. 61) was an Act of the Parliament of the United Kingdom. The Act established boundary commissioners to reform the areas of administrative bodies in England and Wales in preparation for the creation of elected councils by the Local Government Act 1888. In the event, the recommendations of the commissioners were not carried out.
Zincography was a planographic printing process that used zinc plates. Alois Senefelder first mentioned zinc’s lithographic use as a substitute for Bavarian limestone in his 1801 English patent specifications. In 1834, Federico Lacelli patented a zincographic printing process, producing large maps called géoramas. In 1837-1842, Eugène-Florent Kaeppelin perfected the process to create a large polychrome geologic map.