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Estimate: $ 150 - $ 250
(NAVIGATION.) Robertson, John. The Elements of Navigation . . . Seventh Edition, with Additions. 16 engraved folding maps, charts and diagrams, wood-engraved headers and text illustrations. 2 volumes. 8vo, 9 1/2x6 inches, contemporary calf with gilt morocco spine labels, needs binding work; foxing, later part of volume two waterstained; bookplates of William Henry Hart. London: F. Wingrave; J. Johnson, et al., 1805
