0
Yellow with red central stripe
Maritime Numeral Signal Pennants
The official maritime numeral pennants 0–9 shown as coloured triangular flags for decoding nautical-themed geocache clues.
These are distinct from letter signal flags. A numeral pennant represents one decimal digit. Do not mistake the flag design for a plain digit printed on a pennant.
Complete reference chart
1
White with red circle
2
Blue with white circle
3
Red, white, blue vertical
4
Red with white cross
5
Yellow and blue vertical
6
Black over white
7
Yellow over red
8
White with red cross
9
White, black, red, yellow quarters