Eleven maps from the Thorough Guide to the Northern Highlands (Scotland Part II) by M J B Baddeley, and published in 1906 by Dulau & Co, London. Higher resolution scans be found in the Flickr folder.
There is a PDF version of the 1911 New Edition at Archive.org
Search eBay for Thorough Guides
This is an affiliate link. If you click to search eBay and then purchase something, I may receive a small commission.