Nautical ICS 3rd Substitute Signal Flag – 48″ x 33″

This nautical ICS 3rd substitute flag is a salvaged maritime signal flag. It measures roughly 48 inches by 33 inches. It was originally used on working vessels as part of the International Code of Signals (ICS).

This flag repeats the third flag in a message when a ship doesn’t have duplicate signal flags. It also signals the absence of a commanding officer on naval ships. These flags served both practical and traditional roles at sea.

The flag is made of durable material with sewn construction. It shows some signs of age but remains in good condition. This makes it suitable for collecting or display.

This is a solid piece for maritime collectors, nautical decorators, or anyone into naval history.

Features:

• Measures approximately 48″ x 33″
• Used in the International Code of Signals system
• Indicates repeated flag or officer absence
• Salvaged condition with visible signs of use