Description
1a blank; 1b vertical string-gnomon dial and recess for a plummet (missing); 2a horizontal string-gnomon dial with inset compass (painted card) rotating against a scale of 24 hours and carrying its own 24 hour scale; 2b blank. Two hooks for retaining upper leaf in perpendicular and (bowed) inset ivory scale of equal parts [0]-55 on front edge.
