Just a quick preview with what I'm playing with at the moment with future SABRE Maps coverage. It's not quite ready for prime time, but not too far off hopefully!

Steven likes this.

Here's a smaller scale shot which explains what needs to be done - basically sort out the gap in Cornwall and all the ones along the east of the map.

Hi!

Excellent!

Have you used one consistent series, i.e., the same cover style to produce these?

Chris Williams

Bartholomew's cover styles do not denote "series" - indeed neither does that of the OS! Bart's just changed covers over time, so you can find an older cover style on a newer map.

Just a head's up where we are with this.

The scans came from the National Library of Scotland - they date from 1920 - 1924. Some have up to 3 digit A roads, some have just the "first 99", some have draft number, some have no numbers at all.

This is without doubt the hardest and most time consuming project I've ever done for SABRE Maps, and having started (and given up) at least three times in the past 15 months I've finally got something working. Part of the problem is that, unlike OS Maps, there are no gridlines on 1920s Barts maps. There are mileage markers and lat / lon graticules, but they just aren't accurate enough to work properly. In the end I ended up writing an application to do the calibration and did each map by hand running off trig points, railway lines and roads I'm reasonably sure haven't changed course in the last 90 years (such as country lanes).

Finally, one of the biggest "head to desk" moments has been what's now called the "Burnley Black Hole" - a small part of what's now the M65 corridor that is near the join of 4 maps but actually appears on none of them at all. This is best illustrated with a picture, I think :



Anyway, touch wood there'll be something up over the weekend.

That's just plain wierd.

I've looked at my Bart's collection from that era, and I can't help in that timeframe and area. Sorry!

Move it about three miles north-east and it conveniently obliterates Burnley

I've checked the original maps on the NLS website, and sheets 5, 6, 8 and 9 (as seen above) are all from 1920, and yet it seems there is no trace of Clayton-le-Moors on any of them, even including the overhangs. I can only assume it was a mistake in producing the original maps.

In other news, touch wood tiles will be up tonight, along with some other goodies.

The maps are online!

You can find them under "Historic Bartholomew", "1920s Half Inch".

Some of the higher zoom levels are not uploaded yet because I only have a meagre broadband connection

So.... the A7 ....

WT?!? Berwick?

Yeah, it's the draft numbering scheme...