thats interesting. i didn't know that there might be a fallback for individual character. not recognised characters are usually visibly marked as not present (square or X or something else). but if this is whats happening, its not falling back to the next font set in css, its rather picking some "other" (what are the rules here?) font. or simply these characters are designed like this in the font. either as leftovers of originally edited font or on purpose.