Residual Error
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Deviation
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N. Sanson - 1665
Les Isles Orcadney ou Orkney Schetland ou Hetland et Faro ou Farre
Simple rotation of Pont-derived maps is not appropriate. Errors of rotation were not primarily caused by errors in bearings.
(See Fig. 1)
1309
1 : 664,000
1 : 756,000
42.3