Dimensions

Servant's Bell:
Overall height of servant's bell 231 mm (9.25 inches).
Overall width (scroll) 125mm (5 inches).
75mm (3 inches) across bell mouth

Shaker Box:
50mm x 75mm x 80mm (2 inches x 3 inches x 3.25 inches)

Overall setup:
Minimum overall width 250mm (10 inches), height 225mm (9 inches). (When setup with 50mm (2 inch) gap between shaker and bell)
Allow extra 75mm (3 inches) to width for swing of bell