Helicopter aeronautical chart (UK) /
Great Britain.Directorate of Military Survey.
Great Britain.Ordnance Survey.
[Feltham, Middx., England? : Military Survey],
c1980-
Relief shown by contours, shading, gradient tints, and spot heights.
Date of information in lower margin at left, e.g.: Air information current at 30th November 1992 -- Air information ... 26 April 1994.
Ed. statements in boxes in upper and lower margins, e.g.: Ed. 2-GSGS -- Ed. 7-GSGS.
"Based on the Ordnance Survey Routemaster Map."
Sheets numbered in upper margin at left, e.g.: Series GSGS 5344 sheet 6 -- Series GSGS 5344 sheet 14.
Includes notes and sheet coverage diagram.
Printer's no. in lower margin at right, e.g.: 1/93/920983 S -- 5/94/930830 S.
Incomplete: Sheet 16 only.
Aeronautical charts
Helicopter transportation