Who introduced the hourglass profile of the tower ?
" Hourglass " ( America album ) , a 1994 release by America " Hour Glass " ( Hour Glass album ) , a 1967 debut album " Hourglass " ( Kate Rusby album ) , a 1997 release by Kate Rusby " Hourglass " ( James Taylor album ) , a 1997 release by James Taylor " Hourglass " , a 2002 album by Athenaeum " Hourglass " , a 2003 album by Glass Harp " Hourglass " ( Fayray album ) , a 2004 release by Fayray " The Hourglass " , a 2007 remix EP by Leæther Strip packaged with the box set of their album " The Giant Minutes to the Dawn " " Hourglass " ( Dave Gahan album ) , a 2007 release by David Gahan "" , a 2008 album by David Gahan "" , a box set released on June 1 , 2010 by heavy metal band Lamb of God