I done a bit of research and i'm not 100% sure but looking at the pic in this link. It could be the paneling you can see on the left hand side?
http://www.citylibraries.info/pictures/big_picture.asp?Search=Subject&Subject=ROYAL%20PAVILION%20ESTATE&SubjectID=100&Keyword=Libraries&KeywordID=91&Record=2&Records=23&ImageID=789&From=List&StartPos=1&Picture=Photos%2FPic01%2F00559.jpg
http://www.citylibraries.info/pictures/big_picture.asp?Search=Subject&Subject=ROYAL%20PAVILION%20ESTATE&SubjectID=100&Keyword=Libraries&KeywordID=91&Record=2&Records=23&ImageID=789&From=List&StartPos=1&Picture=Photos%2FPic01%2F00559.jpg