This yellow `Q` pennant is flown when first entering a country, indicating that the ship and crew are healthy and request permission to land.
Found on
http://www.diy-wood-boat.com/Boating-terms.html
a yellow flag, designating the letter Q in the International Code of Signals: flown by itself to signify that a ship has no disease on board and requests a pratique, or flown with another flag to signify that there is disease on board ship. Also called
Found on
https://www.infoplease.com/dictionary/quarantine-flag
No exact match found.
