Keywords: WPGaugeFace-2.jpg Pressure-vacuum gauge face and dial Source english wikipedia original upload 2 April 2004 by Leonard G en Image WPGaugeFace jpg WPGaugeFace jpg 50 2012-12-17 11 28 UTC WPGaugeFace jpg en user Leonard G derivative work Hic et nunc cut out contrast Hic et nunc WPGaugeFace jpg GFDL Measuring instruments pressure \</nowiki> Uploaded with derivativeFX Round displays Vacuum gauges |