K-Type’s Banks & Miles fonts are inspired by the geometric monoline lettering created for the British Post Office in 1970 by London design company Banks & Miles, and which included ‘Double Line’ and ‘Single Line’ alphabets.

Banks & Miles Single Line (regular) is free for personal use, and the full typefaces and Commercial Licences are available from:

https://www.k-type.com/fonts/banks-miles/