1. Magnetic Declination : Isogonic lines for the year 1870 / Drawn by A. Lindenkohl ; Chas. G. Krebs Published / Created: 1866 Call Number: 75CKB 1870M Container / Volume: BRBL_00409 Image Count: 1 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > Magnetic Declination : Isogonic lines for the year 1870 / Drawn by A. Lindenkohl ; Chas. G. Krebs, Lith.