Sherlock Holmes vs. Jack the Ripper Hints

What do I need to discover in the left hand's close-up view?

  • 1 of 3: That the woman was wearing a large ring, or several smaller ones.
  • 2 of 3: Notice the large dark mark near the base of the middle finger.
  • 3 of 3: Pick up the magnifying glass and click it on the dark mark.