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Messages - MollyC

Pages: 1 ... 27 28 29 [30] 31
262
The Common Room / Re: Maps
« on: Wednesday 20 December 23 17:13 GMT (UK)  »
[quote The online index is for three scales, house numbers are on the 1:2500 series.[/quote]

To expand on this, in the National Library of Scotland Map Finder the index is named
"1:1,250 to 1:10,560, 1944-1972"  which comprises:

1:1,250 so-called "50 inch" maps, only published for urban areas
1:2,500 "25 inch" maps, all areas except mountain & moorland
1:10,560, true 6-inch maps, which were enlarged to 1:10,000 from about 1972 onwards

The last group has been loaded across the whole country.
The other groups should be available from local libraries.  Not all house numbers are shown, but there are sufficient to interpolate the rest.


263
The Common Room / Re: Maps
« on: Wednesday 20 December 23 10:33 GMT (UK)  »
I used OldMaps when free particularly because it included the first national grid editions of the 1:2500 scale which was the first to include house numbers.  These can often be related back to earlier editions, and house numbers in the census.

When copyright was generally extended by the EU, the OS chose to say that its copyright would remain at 50 years, so these started to come out of copyright around 2000 and OldMaps could publish them.

NLS has started to add them to the website, a huge task.  They have completed Scotland, London and SE England, with a note that 1972 maps were added during 2023 in those areas.  The NLS scans are better than OldMaps.

The online index is for three scales, house numbers are on the 1:2500 series.

Name Books for England and Wales are held by TNA, unscanned.  It appears Scotland has had a transcription project to index theirs.

264
The Common Room / Re: Government proposal to digitise wills (and destroy originals after 25 years)
« on: Wednesday 20 December 23 09:08 GMT (UK)  »
There was no standard for storage of archives before the 1970s.  The general principal is that temperature and humidity need to be kept within a very small range of variation to avoid repeated expansion and contraction of the fibres.  This has been achieved by air conditioning units but some newer buildings have been constructed on eco principals with substantial insulation.  Also protection from water requires avoiding basements and using inert-gas fire suppression systems.  At present these records appear to be in an uncontrolled environment.  How much would it cost to provide the correct storage?  Should private businesses be paid to provide it?  Does TNA have out-stores? What do they do?

265
The Common Room / Re: Maps
« on: Tuesday 19 December 23 23:04 GMT (UK)  »

I am adding the words Ordnance Survey to this thread, otherwise the essence of it will not be indexed.

266
The Common Room / Re: Maps
« on: Tuesday 19 December 23 19:29 GMT (UK)  »
BM indicates Bench Mark, an accurately surveyed height above sea level, from which someone doing a local survey could take their datum.  Their location was carved on buildings or other structures with a broad arrow symbol.  Other heights indicated with only a dot are known as Spot Heights, often along roads or on hill summits.  Contours appear in red on county series 6-inch editions from the 1920s onwards.

267
The Common Room / Re: Maps
« on: Tuesday 19 December 23 14:03 GMT (UK)  »
NLS are also gradually increasing the coverage of "seamless layers" so you can move across the landscape without encountering the sheet margins.  The large scale plans of towns name almost every court and yard.

However, I encourage checking the margins of the single sheet versions as well.  They contain a great deal of information about the exact dates of revision of different types of feature, and the differences between revision date and publication date, sometimes 4 to 5 years, especially where a county boundary is involved.  They also give clear information about admin. areas: civil parish and poor law union boundaries etc.  Read the notes around the edge!

268
The Common Room / Re: Government proposal to digitise wills (and destroy originals after 25 years)
« on: Monday 18 December 23 11:33 GMT (UK)  »
Has the National Archives been consulted, I wonder?

269
Aberdeenshire / Re: Ordinance Maps for Tyrie Parish
« on: Friday 15 December 23 21:03 GMT (UK)  »
You can also view a larger scale, but the name is still not attached to a property.

Select map/map series: 25 inch

(Strictly this is 1:2500, which engineers refer to more correctly as 25 hundred.)

The Ordnance Survey was originally within the Army, under the Royal Board of Ordnance, i.e. heavy guns and ammunition.  Its HQ was in the Tower of London.

270
The Common Room / Re: Looking for an image of an old IGI microfiche page (not specific, any will do)
« on: Tuesday 12 December 23 09:36 GMT (UK)  »
I remember our library having the 1881 fiche for Yorkshire, then later buying 3 surrounding counties.  I looked up my great grandfather living in Derbyshire, discovered he had been born in Westmorland, his wife in Birmingham, and that opened up whole new chapters.  Reward for contributing a little to the transcription!

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