Searching for & viewing Ordnance Survey Drawings (OSDs) online at the British Library

Changes to access arrangements
 BL have altered the way they are providing access to the OSDs online:
 
From the OSD webpage
(http://www.bl.uk/onlinegallery/onlineex/ordsurvdraw/index.html)

use the 'Search our website' box in the upper right corner & enter the relevant sheet number (look this up on the 'Static Index' link on the page) in the format OSD nnn, where nnn is the sheet number, e.g. OSD 152.
 
Once you get to the search results list you can reach the web page by clicking the title of the record in the results list (eg 'Detail from OSD
152 (Hampstead)' ).
 
This takes you to an intermediate page containing the following information:
 
Click on the 'I want this' tab.

 
You then need to click the 'Go' button under the 'View online' heading.


This takes you to another web page with the link to the interactive zoomable image, as before.