A circled capital letter T.
- Indicates a phone number.
2009, Rough Guides, Terry Richardson, The Rough Guide to Istanbul (in English), Penguin, →ISBN, page 28:
- Car ferries, operated by IDO (İstanbul Deniz Otobüsleri; enquiries at Ⓣ0212 […] , Ⓦwww.ido […] )
2013, Emily Laurence Baker, Slow New Forest: Local, characterful guides to Britain's special places (in English), Bradt Travel Guides, →ISBN, page 109:
④ New Forest Wildlife Park
Deerleap Lane, Ashurst SO41 4UH Ⓣ 023 […] Ⓦ www.newforestwildlifepark.co.uk
- (electricity) temperature control switch
- See ○ for uses of a symbol inside a circle.