
Jon Baddeley
Specialist Consultant Collectors, Science & Marine
Sold for £573.75 inc. premium
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This accessory was championed by its maker John Browning (1831-1925) as a perfected arrangement which could be applied to the eyepiece of a microscope, replacing the ordinary eyepiece. First offered in 1877 for a price of 8 pounds and 5 shillings, the spectroscope was advertised as being able to 'indicate plainly the minutest quantity' of blood, adulterations in food, and the minutiae of leaves and plants.