Scale
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The map scale may be estimated by measuring miles along the roads.
Only straightish segments are measured, the many measurements
are averaged to calculate a scale.
The strip map scale is, assuming a modern statute mile, about:-
1 to 180000
3 miles to 1 inch
The measurements made are listed below, mm per mile segment.
pl.45 pl.46 pl.61 pl.62
6.8 8.1 8.9 8.3
16.6 (2) 8.3 8.1 9.1
10.0 8.5 8.5 34.1 (4)
28.2 (3) 17.1 (2) 9.1
26.1 (3) 8.5 26.2 (3)
8.6 8.8
8.1 18.0
total 294.0mm = 33 miles, gives scale 1 to 180641.
The map scale is about:
scale 1 to 180000
3 miles to 1 inch
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