Geographia primary route map [of Great Britain]
London, 
[1975-1977]
2. South West England aud South Wales [1977]
3. Wales and Midlands [1977]
4. Northern England [1975] [1977]
5. Central and Southern Scotland [1977]
The scale is given on the cover as 1:300,000.
Wanting sheets 1 & 6.