Quick answer
Numeral One represents the digit 1 in International Code flag signaling. Its identifying design is a white pennant with a red disc. Numerals form numbers or accompany code groups; interpret the complete signal. See NGA Publication 102.
| Item | Description |
|---|---|
| Code designation | Numeral pennant 1 |
| Identifying pattern | White pennant with a red disc |
| Voice code word | UNAONE |
| Pronunciation | OO-NAH-WUN; syllables equally emphasized |
| Proportions and disc geometry | No numerical construction specification established here |
| Physical colours | No textile colour standard established here |
Construction and evidence limits
The official identification chart is a recognition reference. This record does not derive exact dimensions, disc placement or colour coordinates from its artwork.
No common-manufacture ratio has been verified for this proposal. Screen colours should be described as approximations, and any editorial reconstruction should identify its chosen geometry separately from official specifications.
Code history
The revised Code was adopted by IMCO in 1965. Its 1969 edition became effective on 1 April 1969, replacing the earlier two-volume publication. These dates concern the Code, not the first appearance of this pennant design. The edition consulted is revised 2020. See the Publication 102 preface.
Related record
Compare International Code Numeral Pennant Zero.