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National Maritime Museum
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Queen's House
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Royal Observatory
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Astronomers Take Over
This brand-new interactive gallery gives curious minds aged 4 to 104 the space to play, learn and explore!
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October half term at the Royal Observatory
Come along for astronomy talks, spooky tours for Halloween and more
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Diwali at the National Maritime Museum
Lantern parades, dance performances and rangoli workshops: celebrate the Festival of Lights in Greenwich
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ZWO Astronomy Photographer of the Year 2026 winners
Take a look at the winning images in the world's biggest space photography competition
Turner's 'The Battle of Trafalgar': a maligned masterpiece?
J.M.W. Turner's vast naval scene is a treasure of the Royal Museums Greenwich collection, but why was it so controversial when it was unveiled in 1824?
Dog that dived to the bottom of the ocean surfaces at the National Maritime Museum
A toy that journeyed to the very bottom of the ocean has been donated to the National Maritime Museum.
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Explore our Collection
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Item Category
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Item Category
Item Category
Type
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Type
Type
drafting t&e: rule, parallel
drafting t&e: rule, parallel(with combined protractor)
Navigational Instrument
Parallel rule
Parallel rule box
Parallel rule case
Parallel rule instruction booklet
Parallel rule manufacturer note
Parallel rule tacks
Rule
water transport: fighting vessel: battlecruiser (HMS)
water transport: fighting vessel: submarine (HMS)
Materials
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Materials
Materials
.
boxwood
brass
cardboard
cork
ebony
Ebony (CITES)
ivory
metal
metal: brass
metal: steel
nickel bronze
nickle bronze
organic: ebony
organic: ivory
paper
plastic
plastic (acrylic)
silver
synthetic: perspex
textile
wood
wood: boxwood
wood: ebony
Display Location
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Display Location
Display Location
Display - Atlantic Gallery
Display - Pacific Encounters Gallery
Display - Polar Worlds Gallery
Display - Voyagers
Not on display
Creator
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Creator
Creator
Adams, George
Coombes
Crichton
Elliott Bros
Engleheart, John Cox Dillman
Harling, W H, Ltd
Henry Hughes & Son Limited
Jones, Thomas
Lee, George, & Son
Potter, John Dennett
Schiavetti-Bellieni
Sisson, Jonathan
Unknown
W. F. Stanley & Co Ltd
Watkins & Smith
Weems & Plath Ltd
Worbe, T G
Worthington, Nathaniel
Young, David
Places
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Places
Places
Brest, France
China
Devonport
England
London
Portsmouth
Unknown
Events
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Events
Events
World War I, 1914-1918
World War I: Battle of Jutland, 1916
Vessels
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Vessels
Vessels
Lion (1910)
M2 (1919)
Exhibition
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Exhibition
Exhibition
North-West Passage
Voyagers
People
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People
People
Home, Milne
Strutt, Honourable Arthur Charles
Townsend, C. R.
Century
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Century
Century
18th
19th
20th
21st
unknown
Date Range
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Date Range
Date From
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1720
1745
1775
1815
1825
1830
1831
1835
1845
1849
1870
1875
1882
1885
1895
1909
1915
1934
1945
2006
Date To
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1730
1755
1785
1825
1835
1840
1841
1845
1855
1859
1880
1882
1885
1895
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1919
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1934
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2007
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Parallel rule
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showing 39 objects results
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Parallel rule case
Parallel rule
Parallel rule
Parallel rule
Parallel rule tacks
Parallel rule
Parallel rule
Parallel rule
Black's combined parallel ruler and protractor. (Parallel rule)
The Mountbatten Ruler (Patent Applied For) For Chart Work, etc. (Parallel rule instruction booklet)
Parallel rule manufacturer note
Parallel rule box
Parallel rule
Parallel rule
Parallel rule
Parallel rule
Rolling parallel rule (Parallel rule)
Parallel rule
Parallel rule
Parallel rule
Parallel rule
Parallel rule
Parallel rule
RUMBOGRAPHE LORIN (Parallel rule)
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