Levelling Homepage Ordnance Survey's
Levelling
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'Levelling' Files

[General Levelling Files - 1GL - 2GL] (All | Viewed)

[Summary of Records of the Ordnance Survey of Great Britain]

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Show only 'OS 18'
RefSourceDateNotes
+ - OS 18Ordnance Survey: Directorate of Field Survey: Cambridge Radio Telescope Observations1969-1970
OS 18/6Geodetic levelling book: forward1969
OS 18/7Geodetic levelling book: back1969
OS 18/8Geodetic levelling book: forward and back1969
OS 18/9Geodetic levelling book: forward; metric1969
OS 18/10Geodetic levelling book: back; metric1969
OS 18/11Geodetic levelling book: forward1969
OS 18/12Geodetic levelling book: back1969
OS 18/13Geodetic levelling book: back1969
OS 18/14Geodetic levelling book: forward1969
OS 18/15Geodetic levelling book: forward and back; third series1970
OS 18/16Geodetic levelling book: forward and back1969
OS 18/17Geodetic levelling book: forward and back1970
OS 18/18Geodetic levelling book: forward; metric1970
OS 18/19Geodetic levelling book: back; metric1970
OS 18/20Geodetic levelling book: forward and back1970
OS 18/21Geodetic levelling book: forward and back1970
OS 18/22Geodetic levelling book: forward and back; staff comparison readings1970
OS 18/23Geodetic levelling book: forward and back1970
OS 18/24Geodetic levelling book: back; third series1970
OS 18/25Geodetic levelling book: forward; third series1970
OS 18/26Geodetic levelling book: forward and back; third series1970
OS 18/27Geodetic levelling book: forward and back1970
OS 18/28Geodetic levelling book: forward and back1970
OS 18/29Geodetic levelling book: forward and back1970
OS 18/30Geodetic levelling book: forward and back1970
OS 18/31Geodetic levelling book: back1970
OS 18/32Geodetic levelling book: forward; metric, third series1970
OS 18/33Geodetic levelling book: back; metric, third series1970
OS 18/34Geodetic levelling book: forward and back, stock bracket experiment1970