This is a vintage illustration depicting a dramatic scene at sea. A colossal octopus is attacking two sailing ships. The octopus is massive, filling much of the frame, with a bulbous head covered in small dots. It has large, round eyes and several long, winding tentacles that are wrapped around the ships, pulling them down. The ships are detailed with masts, sails, and rigging, and one appears to be larger than the other. The sea is represented by horizontal lines, suggesting waves. A flag is visible on one of the ships. The illustration has a grainy, aged appearance, typical of older prints. The number '30' is printed in the bottom left corner.