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Keywords from Image Description:
Uusimaa Turku signal flag table. en Finnish minelayer Uusimaa instruction table showing signal flags morse code important signal lamp and sound codes Photographed during Finnish Navy anniversary in Turku fi Miinalaiva Uusimaan opastaulu jossa on kuvattu merkinantoliput morsemerkit trkeimmt vilkkumerkit sek nimerkit Kuvattu Turussa