Le Neptune françois

The title page of the atlas features a hand-colored engraving by Jan van Vianen, depicting Neptune riding a seashell-shaped chariot drawn by four hippocampi, mythical creatures with the upper body of a horse and the lower body of a fish. The god of the sea is escorted by tritons, who command the waves by blowing their conch shells. In the background, an armada sails to war amid cannon fire and lightning.