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Roehre ef innenspiegel. Rhre EF mit Innenverspiegelung own original caption Selbst fotografiert Patrik Schindler Poc Poc at org de Poc Original upload log de Wdwd CommonsHelper page de Roehreefinnenspiegel Poc bytes no Information Rhre EF mit Innenverspiegelung Selbst fotografiert Patrik Schindler Rhre vacuum tubes