Updated 3 November 2026
There is no sound basis for crediting every toilet pictogram used in the UK to one designer. The exact drawing and signage system matter. Familiar facilities symbols have been developed and adapted within different public-information systems.
One documented symbol project
The American Institute of Graphic Arts worked with the US Department of Transportation on a passenger and pedestrian symbol system in the 1970s. The 1974 project report describes an effort to create a consistent group of symbols, drawing on recognisable concepts already in use.
The Smithsonian credits Cook & Shanosky with a 1974 “Symbol Signs” poster for the Department of Transportation. The SEGD’s AIGA/DOT symbol resource includes restroom figures among the transport and public-space pictograms.
This is a documented design contribution, rather than proof that all toilet symbols everywhere began with that project.
How does Rail Alphabet fit in?
Rail Alphabet is a typeface associated with Jock Kinneir and Margaret Calvert. Network Rail describes the original lettering as a 1960s design and distinguishes it from later Rail Alphabet 2 work and the wider wayfinding system.
Lettering, pictograms, layout and a transport organisation’s corporate identity are related but separate elements. Calvert’s major contribution to British public signage does not justify attributing every familiar toilet figure to her without evidence for the particular design.
Identify the sign before its creator
If you are researching an existing sign, record where it came from, its approximate date and the system or organisation that used it. Compare the actual drawing, rather than assuming similar-looking figures are identical.
For a business replacing a sign, the practical question is usually whether users understand the facility information and can follow the route to it.
Choose for clarity and consistency
Check that symbols and wording describe the facilities actually provided. Use a consistent approach across directions and door signs, and consider the people who need to read them.
An illustrative review might start at reception: can a visitor find the correct facility without asking which of several differently styled signs to follow? Address the complete journey, not only the door plaque.
Sources: US NTIS: 1974 Symbol Signs report, Smithsonian: Symbol Signs, SEGD: AIGA/DOT symbol resource and Network Rail: wayfinding guidance.
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