TfL still uses UTS in modified form and hugely reduced quantities, as detailed in Wikipedia.
Bank 01 - UTS London Underground ticket - London EC4N
Bank 35 - UTS London Underground ticket - London EC4N
Bank 21 - UTS London Underground ticket - London EC4N
Bank 30 - UTS London Underground ticket - London EC4N
Bank 34 - UTS London Underground ticket - London EC4N
Bank 10 - UTS London Underground ticket - London EC4N
