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History of Science Museum

Two-Bladed Shutter

Inventory Number 89144


Acknowledgement: © History of Science Museum, University of Oxford, inv.89144

Item type
Object
Physical material
Wood
metal
Object type
Shutter
Dimensions
Height: 258mm Width: 80mm Depth: 25mm Weight: 454g
Inventory No
89144

Description

Two-bladed shutter. The shutter opening is situated in the centre of a rectangular wooden frame with a metal rim and with a control panel to one side. The control panel has 0, 8, 16, 32, 64, 128 and 256 settings. The central knob of the control panel has an inscribed motif of an archery arrow. Between the shutter and the control panel is a raised section of wood shaped like the braces (or 'curly brackets') symbol on a computer keyboard.