English: Celatone by Matthew Dockrey. Brass and steel, antique spyglass.
An interpretation of Samuel Parlour's 'apparatus to render a telescope manageable on shipboard', itself a reinvention of Galileo's celatone. As per Parlour's original design, the finder can be moved side to side, allowing the wearer to position it to match their interocular distance. The candle height is also adjustable.
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