WARSPITE never carried her 4" guns in casements - a casement is a window. They were in single Mk III mountings on the foc's'le deck from 1926 until her modernisation, when they were replaced by twin Mk XIX mountings, again on the foc's'le deck.
She was completed with 12 6" guns in casemates; four were removed in her modernisation in 1934-37 and the remainder in 1944 before she took part in Operation Neptune, bombarding German positions in Normandy. Any photographs taken during the Normandy or Walcheren bombardments, or those taken while she was awaiting scrapping, or wrecked off the Cornish coast, show her with plated-over casemates, for example photos A23915 and A23916 on the Imperial War Museum website (
http://www.iwm.org.uk/collections/search), or on a Warspite website (
http://www.warspite.dk/images/Warspite-1947.jpg) - or even the photo in the posting on Page 15 of this very thread by AngloSaxon posted on 27 January 2012.
Other work carried out in the 1944 repair period included removal of four single 20mm Oerlikons and fitting of four powered twin Oerlikons, RDF Type 284 on the main DCT above the bridge replaced by Type 274, two barrage-directors with RDF Type 283 fitted on the after superstructure, the two 36" searchlights on the signal bridge replaced by two of the above-mentioned twin Oerlikons and Type 650 guided-missile jamming device fitted with aerials either side of the foremast starfish.