Symbol TT Regular is a TrueType (TT) version of the classic "Symbol" typeface originally designed for digital systems. Unlike standard text fonts (such as Times New Roman or Arial) which contain the Latin alphabet, numbers, and basic punctuation, the Symbol font maps Greek letters, mathematical operators, and various technical glyphs to the standard keyboard layout.
As you can see, when the smaller T is lit, the font you write with is smaller than the main title but bigger than the normal text. Adrian CDTPPW symbol tt regular font