It looks like Tiresias PCfont by "The Royal National Institute for the Blind" [2000]

More info:
http://www.tiresias.org/about/index.htm

The Digital Accessibility Team (DAT) are involved in influencing the research and development of new technologies for the future benefit of blind and partially sighted people and in providing standards and research to improve the design of equipment to ensure it is accessible by people with sight problems.

Seems to be it. Thanks.