Johnston

Johnston (or Johnston Sans) is a sans-serif typeface designed by and named after Edward Johnston. The typeface was commissioned in 1913 by Frank Pick, commercial manager of the Underground Electric Railways Company of London (also known as 'The Underground Group'), as part of his plan to strengthen the company's corporate identity. Johnston was originally created for printing (with a planned height of 1 inch or 2.5 cm), but it rapidly became used for the enamel station signs of the Underground system as well. It has been the corporate font of public transport in London since the foundation of the London Passenger Transport Board in 1933, and of predecessor companies since its introduction in 1916, making its use one of the world's longest-lasting examples of corporate branding.

From the Wikipedia article “Johnston (typeface)”, licensed under CC BY-SA 4.0.

Test this typeface at both text and display sizes before committing; print a sample page at final size.

Commercial typefaces require a licence that covers embedding in PDFs and ebooks; check the foundry's licence before you publish.