As character names:

U+324D CIRCLED NUMBER SIXTY ON BLACK SQUARE character (㉍)

As raw characters:

As a string of HTML entities:

㉍

Decoder output:

Byte number 1 is decimal 227, hex 0xE3, octal \343, binary 11100011
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 137, hex 0x89, octal \211, binary 10001001
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 141, hex 0x8D, octal \215, binary 10001101
This is continuation byte 2, expecting 0 more.

U+324D	CIRCLED NUMBER SIXTY ON BLACK SQUARE
	= speed limit 60 km/h