Code point
U+1D773
Glyph appearance depends on your fonts.
U+1D773
Ll<font> 03B4U+1D773 MATHEMATICAL SANS-SERIF BOLD SMALL DELTA is a Unicode 16.0.0 character in the Lowercase Letter category. It belongs to the Mathematical Alphanumeric Symbols block.
Choose the representation you need, then copy its value.
U+1D773
120691
𝝳
𝝳
F0 9D 9D B3
D835 DF73
0001D773
%F0%9D%9D%B3
\U0001D773
\u{1D773}
\uD835\uDF73
\1D773