TfL still uses UTS in modified form and hugely reduced quantities, as detailed in Wikipedia.
Grange Hill 30 - UTS London Underground ticket - Essex IG7 - final 30 held
Hornchurch 30 - UTS London Underground ticket - final example from Multifare 30
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 24 - UTS London Underground ticket - London EC4N