Errm, that wasn't Abigail-II's point exactly
(octal vs. decimal).
ASCII only defines 0-127, 128-255 are 8th bit
and non-standard (in as much as sometimes
random countries did random things. Heck,
Germany even mucked about with []\{}|~).
The char in question is probably from ISO-8859-1.
More on character sets.