Magnetic Declination : Isogonic lines for the year 1870 / Drawn by A. Lindenkohl ; Chas. G. Krebs, Lith.
15603706
Found In:
Beinecke Rare Book and Manuscript Library > Magnetic Declination : Isogonic lines for the year 1870 / Drawn by A. Lindenkohl ; Chas. G. Krebs, Lith.