Saurashtra Digit One
HTML Entity Browser Test:

U+A8D1 is the Unicode hex value of the character Saurashtra Digit One, which is categorized as "decimal digit number" in the Unicode 6.0 character table.

Unicode Character Information
Unicode Hex U+A8D1
General Category Decimal Digit Number [Code: Nd]
Canonical Combining Class 0
Bidirectional Category L
Numeric Value 1
Mirrored N
Unicode Character Encodings
Saurashtra Digit One HTML Entity ꣑ (decimal entity), ꣑ (hex entity)
Windows Key Code Alt 43217 or Alt +A8D11
Programming Source Code Encodings Python hex: u"\uA8D1", Hex for C++ and Java: "\uA8D1"
UTF-8 Hexadecimal Encoding 0xEAA391
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 43217) will only work on computers with support for this Unicode character in the active code page. The hexadecimal alt code (Alt +A8D1) will work for all Unicode characters provided Hex input from the numeric keypad is enabled.
* If the Saurashtra Digit One character does not display correctly in your browser, you may not have a Unicode font on your system that supports this particular symbol.