1907 map of the stations around Charing Cross and Holborn on the Bakerloo, District, Hampstead (Northern) and Piccadilly lines.
Printed by Johnson, Riddle &amp; Company Ltd. Author seems not to be listed.
<a rel="nofollow" class="external text" href="https://www.ltmuseum.co.uk/collections/collections-online/maps/item/1984-51-504">London Transport Museum</a>. This <em>somewhat</em> higher definition image taken from a freeze frame of <a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=hgxDJBkyHhs">this video</a>. Full resolution licensable from the Museum; copyright on the map itself would have expired since it is over a century past publication, <a href="//commons.wikimedia.org/wiki/Commons:Reuse_of_PD-Art_photographs" title="Commons:Reuse of PD-Art photographs">making this cropped image of only the map hostable on Commons</a>.