Georgian Capital Letter Don
HTML Entity Browser Test:

U+10A3 is the Unicode hex value of the character Georgian Capital Letter Don, which is categorized as "uppercase letter" in the Unicode 6.0 character table.

Unicode Character Information
Unicode Hex U+10A3
General Category Uppercase Letter [Code: Lu]
Canonical Combining Class 0
Bidirectional Category L
Mirrored N
Lowercase Version U+2D03
Unicode Character Encodings
Georgian Capital Letter Don HTML Entity Ⴃ (decimal entity), Ⴃ (hex entity)
Windows Key Code Alt 4259 or Alt +10A31
Programming Source Code Encodings Python hex: u"\u10A3", Hex for C++ and Java: "\u10A3"
UTF-8 Hexadecimal Encoding 0xE182A3
1 To type a Unicode symbol in Windows, hold down the ALT key and enter the decimal or hexadecimal code provided using the numeric keypad. The decimal alt code (Alt 4259) will only work on computers with support for this Unicode character in the active code page. The hexadecimal alt code (Alt +10A3) will work for all Unicode characters provided Hex input from the numeric keypad is enabled.
* If the Georgian Capital Letter Don character does not display correctly in your browser, you may not have a Unicode font on your system that supports this particular symbol.