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Keywords from Image Description:
Poltava turret construction. en Construction of main calibre turret on Gangutclass battleship Poltava fi Keisarillisen Venjn laivaston Gangutluokkaan kuuluneen taistelulaiva Poltavan paseistuksen tykkitornia kootaan St Petersburg Author winter PDRusEmpire Poltava ship Naval gun turrets Obukhovskii inch Pattern gun