Gatty's combined world and star chart for emergency navigation. Drawn by Harold Felber. Copyright 1943 by Harold Gatty and Fenna Gatty. Copyright under international copyright convention and under Pam American copyright convention. (insets) Relative ocean rainfall : December-January-February. (with) Relative ocean rainfall : June-July-August. (with) Variation of the magnetic compass (1940). (on verso: text and). Gatty star chart for recognition. North polar area [star chart]. South polar area [star chart]. | Gatty's combined world and star chart for emergency navigation. Drawn by Harold Felber. Copyright 1943 by Harold Gatty and Fenna Gatty. Copyright under international copyright convention and under Pam American copyright convention.