Wooden plaque, 6 x 9 with a circular relief and a plate that reads: French Frigate 'Prairial', San Diego, 31 October - 6 November 2008. Floreal class surveillance frigates like 'Le Prairial' are ocean capable vessels. Their main duty is to patrol overseas maritime zones over which France implements its sovereignty. In peace time, they enforce navigational police, control fishery and protect trade traffic. This was presented by the French Navy during an occasion of the ship's visit in 2008.