Product images of Handle bell
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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.
One of the 'handle bells' by Alexander Herschel, made as accessories for William Herschel's 40-inch telescope. The substantial observing gallery of the 40-foot telescope's tube was raised and lowered to the appropriate height by ropes attached to either side of the gallery and passing over the top of the ladderwork and down to 'compound barrels', one on each side, turned by two workmen. The workmen would necessarily have to pull in unison, otherwise the gallery would tip over to one side, and to ensure this, each had a 'handle bell' that rang automatically once every time his handle was turned.
- Image reference: F3934
- National Maritime Museum, Greenwich, London