The survey of Ireland Lough Foyle Base measurement 1827-28
Brand, Michael
The survey of Ireland Lough Foyle Base measurement 1827-28 - 1990 - Land & Minerals Surveying 8(6) June 1990, 282-285(4) .
The 150th anniversary of the death of Thomas Drummond, one of the `illustrious` sons of the Ordnance Survey was marked by the unveiling of commemorative plaques near the site of the Ordnance Survey Lough Foyle Base Towers on 15 May 1990.
HISTORY
LOUGH FOYLE BASE LINE
ORDNANCE SURVEY
The survey of Ireland Lough Foyle Base measurement 1827-28 - 1990 - Land & Minerals Surveying 8(6) June 1990, 282-285(4) .
The 150th anniversary of the death of Thomas Drummond, one of the `illustrious` sons of the Ordnance Survey was marked by the unveiling of commemorative plaques near the site of the Ordnance Survey Lough Foyle Base Towers on 15 May 1990.
HISTORY
LOUGH FOYLE BASE LINE
ORDNANCE SURVEY