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Summary
| Description |
English: Light signal for vessel engaged in underwater operations at night according to International Regulations for Preventing Collisions at Sea |
| Date | |
| Source | Own work |
| Author | Peter Southwood |
Green light indicate unobstructed side, red indicate obstructed side
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:34, 25 November 2011 | | 1,000 × 1,000 (11 KB) | Pbsouthwood |
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