Abstracts of secondary lines re-levelling of London, commenced January 1931
Winterbotham, H. St. J. L.
Abstracts of secondary lines re-levelling of London, commenced January 1931 - Southampton Ordnance Survey 1932 - 51p. 31cm.
Contains the lines of secondary levelling carried out in connection with the re-levelling of London on the Newlyn Datum.
London
526.98 $2 18
Abstracts of secondary lines re-levelling of London, commenced January 1931 - Southampton Ordnance Survey 1932 - 51p. 31cm.
Contains the lines of secondary levelling carried out in connection with the re-levelling of London on the Newlyn Datum.
London
526.98 $2 18