His face was of the doubtful kind;

Related:

• And to his eye There was but one beloved face on earth,
  And that was shining on him. -- Lord Byron (1788-1824)...
• An eye in a blue face Saw an eye in a green face. "That eye is like this eye" Said the first eye,
  "But in low place, Not in high place...
• The light of love, The mind, the music breathing from her face,
  The heart whose softness harmonized the whole,-- And...
• He has a mind like a steel trap.
  Some day it'll snap shut and swallow his face...
• All that is solid melts into air, all that is holy is profaned,
  and man is at last compelled to face with sober senses...
• One kind of brain-scanning device is used by doctors to monitor normal as well as abnormal activity in a patient's brain.
  The device provides precise measurements of blood flow...
• It takes a special kind of courage to face what we
  all have to face...