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1.
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The national plans (the ten-foot, five foot, twenty-five inch and six-inch scales) by Series: Ordnance Survey Professional Papers ; , New Series 16Language: English
Publication details: London HMSO 1934
Availability: Items available for loan: London (1)Collection, call number: SHELF 116.
2.
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Abstracts of secondary lines re-levelling of London, commenced January 1931 by Language: English
Publication details: Southampton Ordnance Survey 1932
Availability: Items available for loan: London (1)Collection, call number: RESERVE.
3.
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An investigation into the accuracy of the principal triangulation of the United Kingdom by Series: Ordnance Survey Professional Papers ; (2) new seriesLanguage: English
Publication details: London HMSO 1913
Availability: Items available for loan: London (2)Collection, call number: RESERVE, ...