Product images of Day or night telescope
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Manufactured in the UK
All products are printed in the UK, using the latest digital presses and a giclée printmaking process.
We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.
Day or night telescope
This achromatic telescope has a leather-covered barrel and a single brass draw tube. The other brass fittings include an objective cap with a sliding cover and a sliding eyepiece cover. The maker's name is inscribed on the draw tube as 'T. Harris & Son, / London / Day or Night'. Night and day telescopes were commonly used on board ship. As the name suggests, they could be used in the dark because they had relatively large objective lenses to collect the maximum amount of light in poor seeing conditions.
Thomas Harris & Son
- Image reference: F4525-001
- National Maritime Museum, Greenwich, London