TfL still uses UTS in modified form and hugely reduced quantities, as detailed in Wikipedia. Decoding vital info centrally on the right hand side, machine series starting 01 upwards related to now-closed staffed Ticket Office windows; 10 onwards relate to self-service Fewfare machines; series 31 etc comprise a complex Multifare variant.
East Ham 11 - UTS London Underground ticket - London E6 is ideal for those wanting to conveniently travel by London Underground to areas served by the East London line near the E6 postcode.