The '$' (dollar) has a single line crossing the 'S'.

The diagonal strokes of the uppercase 'K' meet in a 'T'.

The leg of the uppercase 'R' is curved outwards.

The tail of the lowercase 'y' is curved or Ushaped to the left.

The diagonal strokes of the lowercase 'k' meet in a 'T'.

The ends of the uppercase 'Q' tail are both diagonal.

Note that the fonts in the icons shown above represent general examples, not necessarily the two fonts chosen for comparison.
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The '$' (dollar) has a single line which does not cross the 'S'.

The diagonal strokes of the uppercase 'K' meet at the vertical (with or without a gap).

The leg of the uppercase 'R' is straight.

The tail of the lowercase 'y' is substantially straight.

The diagonal strokes of the lowercase 'k' meet at the vertical (with or without a gap).

The ends of the uppercase 'Q' tail are both horizontal.
