Skip to main content
Membership
Donate
Shop
Venue hire
Search
Royal Museums Greenwich
Main navigation
Menu
Royal Museums Greenwich
Search
Close
Plan your visit
Back
Plan your visit
Tickets and prices
Getting here
Accessibility
Family visits
Group visits
School visits
Cutty Sark
Cutty Sark
Open daily 10am-6pm
Last entry 5.15pm
Adult: £18 | Child: £9
Members go free
Free
National Maritime Museum
National Maritime Museum
Open daily 10am-5pm
Last entry 4.15pm
Free entry
Booking recommended
Free
Queen's House
Queen's House
Open daily 10am-5pm
Last entry 4.15pm
Free entry
Booking recommended
Royal Observatory
Royal Observatory
Open daily 10am-7pm
Last entry 6pm
Adult: £18 | Child: £9
Members go free
What's on
Back
What's on
Exhibitions
For families
Member events
Talks and tours
National Maritime Museum
Family fun
Astronomers Take Over
This brand-new interactive gallery gives curious minds aged 4 to 104 the space to play, learn and explore!
Cutty Sark
Experiences
Cutty Sark Rig Climb
Experience life at sea and climb the rigging of one of London's true icons
National Maritime Museum
Talks and tours
Astrophotography - Our changing view of the Universe
Join astrophotographer Josh Dury as he discusses the importance of protecting our view of the night sky
Stories
Back
Stories
Maritime history
Space and astronomy
Art and culture
The ocean
Time
Royal history
How to see the 12 August 2026 partial solar eclipse
Learn more about the best solar eclipse visible from the UK and Ireland so far this century, when around 90-96% of the Sun will be covered by the Moon
ZWO Astronomy Photographer of the Year 2026 shortlist
Discover a selection of the breathtaking images shortlisted in the global astrophotography competition
Making Waves: Dr Dawn Wright
Oceanographer and chief scientist Dr Dawn Wright on diving to the deepest part of the ocean – and why we need to stand up for our blue planet
Collections
Back
Collections
Conservation
Research
Donating items to our collection
Collections Online
Search our online database and explore our objects, paintings, archives and library collections from home
The Prince Philip Maritime Collections Centre
Come behind the scenes at our state-of-the-art conservation studio
Caird Library
Visit the world's largest maritime library and archive collection at the National Maritime Museum
Learn
Back
Learn
Learning resources
School visits and sessions
SEND sessions and resources
Opportunities for teachers
Adult learning
Practitioner residencies
Schools
From astronomy to maritime history, bring your subjects to life with our school sessions and resources
Communities
Explore our groups, programmes and events developed with local and connected communities
Young people
Gain skills and hands-on experience with a range of creative activities, projects and events
Support us
Back
Support us
Become a member
Donate
Corporate partnerships
Become a patron
Leave a legacy
Commemoration and celebration
Our sites
Cutty Sark
National Maritime Museum
Queen's House
Royal Observatory
Membership
Donate
Shop
Venue hire
Search
Beta
Back to all results
Explore our Collection
Objects
Library
Archive
Search our collection
filters…
Search
Catalogue Section
Select…
Catalogue Section
Catalogue Section
Personal collections
Apply Filter
Level
Select…
Level
Level
FILE
ITEM
Apply Filter
Creator
Select…
Creator
Creator
Platt, John
Apply Filter
Date Range
Select…
Date Range
Date From
Select...
1700
1741
1755
1757
1761
1763
1777
1778
1780
1781
1782
1783
1784
1785
1786
1788
1789
1790
1792
1793
1794
1795
1796
1797
1799
1800
1801
1803
1804
1805
1807
1808
1809
1813
1814
1819
1837
1848
1884
Date To
Select...
1741
1757
1771
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1804
1805
1807
1808
1809
1813
1814
1815
1817
1819
1832
1837
1841
1848
1856
1900
2000
Show only:
Requestable
Applied Filters
Platt, John
Clear all
showing 132 archive results
Sort by
Relevance
Object title/name
Object title/name (desc)
Finding reference
Finding reference (desc)
Show results as grid
Show results as list
Logbook of HM Sloop PORTO, Thomas Lumley Commander, J. Platt, River Tagus - Madras Roads (Manuscript)
1780-07-25 - 1782-08-29
PLT/1/1
A journal of the Oliba Spanish Schooner Privater Prize to His Majesty's Sloop PORTO, the Hon Tho. Lumley Commander, kept by J. Platt, Prize master, 1780 (Manuscript)
1780-11-25 - 1789-12-19
PLT/1/3
Maths exercise book, with manuscript note, "my father's writing and account book". (Manuscript)
1741
PLT/82
Articles of partnership, between William Williard, James Grant, William Bosslar and John Gardon, for cutting and polishing marble. (Manuscript)
1757-08-19
PLT/83
Printed notice from the Admiralty Office, 28 Sept 1809, regarding pensions for the widows from the Charity for the Relief of Commissioned and Warrant Officers of the Royal Navy. (Manuscript)
1809-09-28
PLT/105
Two copies of a printed article, "Temporary Rudder", by W. Ricketts, Captain of the Sea-Fencibles, Folkstone. Includes various loose sketches and a copy of part of a letter from Commodore Owen, 11 July 1809, regarding a mechanised pump. (Manuscript)
1809-07-11
PLT/106
Miscellaneous loose leaf manuscript signals. 1782 - 1809 (Manuscript)
1782
PLT/43
Printed "Night Signals and Instructions for the Conduct of Ships of War", 1793, signed John Platt HMS ALLIGATOR. (Manuscript)
1793
PLT/44
Watch and quarter bills, HMS ROYAL SOVEREIGN, 1801. (Manuscript)
1801
PLT/53
Press warrant, empowering Captain William Affleck of HMS ALLIGATOR, to impress seamen, 20 Dec 1794. Also includes a paragraphs deputing John Platt, also of HMS ALLIGATOR to impress seamen, dated 3 January 1795. (Manuscript)
1794-12-20 - 1795-01-03
PLT/56
Order book, Centurion (Manuscript)
1789
PLT/24
Volume of general orders, 18th Sept 1807, "Head Quarters Citydel". (Manuscript)
1807-09-18
PLT/28
Signal book HMS PENELOPE and HMS CENTURION, Jamaica Station, 1790 (Manuscript)
1790
PLT/35
HMS ALLIGATOR day and night signals. (Manuscript)
1793-06-28
PLT/36
Signals from HMS ARETHUSA, includes signal pendants and order of sailing "given under my hand on board His Majesty's Ship ARETHUSA at Spithead January 2 1796". (Manuscript)
1796-01-02
PLT/37
Impressment orders for John Platt of his majesty's ship, Alligator, Thomas Affleck Esq Commander" (Manuscript)
1794-12-20
PLT/1/2
Notebook on gunnery and gunnery practice, HMS PENELOPE, Jamaica, 1793, signed Lieutenant J. Platt. (Manuscript)
1793
PLT/72
HMS CENTURION's watch bill and hammock list, 1792, Lieutenant Platt. (Manuscript)
1792
PLT/50
Undated notebook covering sailing directions for Port Royal Harbour; latitudes of the Islands and Continent from Jamaica to the Bay of Honduras; list of men sent on board of prizes, 27th March 1793, sketch of ship; calculations and rules for working out longitudes and latitudes, 1785, 1789. (Manuscript)
circa 1785-1793
PLT/73/1
Incomplete logbook 21 Feb 1794 - 5 March 1794, HMS ALLIGATOR covering death of Captain William Affleck, Platt, 1st Lieutenant, sent to cruise off Cape Francoise, St Domingo, with the commande of the ALLIGATOR, until superseded by Captain Surredge. (Manuscript)
1794-02-21 - 1794-03-05
PLT/14
Printed pedigree of the Taylors and the Willotts, printed by John Clarke Platt and published by William Willott, April 1848. (Manuscript)
1848
PLT/107
Completed form, state and condition of HMS PRINCE OF WALES, July 1800, Adrain Renou Captain. (Manuscript)
1800
PLT/64
Logbook, 4 Apr 1784 - 24 April 1784, Goa Roads (Manuscript)
1784-04-04 - 1784-04-24
PLT/7
Logbook 22 January 1788 - 11 September 1788, kept By J. Platt, chief mate, England - Monduras - England (Manuscript)
1788-01-22 - 1788-09-11
PLT/10
First
Prev
Page
1
Current page
2
Page
3
Page
4
Page
5
…
Next
Last
Loading filters
Royal Museums Greenwich
Close
Search
Want to search our collection? Search here.
Back to top