From the Illustrated Police Gazette.
People of Whitechapel during the Ripper era. Photographs were very formal at the time, and you can be sure that for a posed picture, people would be wearing their best.
A Composite sketch system invented just shortly before the Ripper murders by the French photographer Alphonse Bertillon. Called Portrait Parle or "speaking picture", it categorized facial features so that an artist could create a workable likeness from eyewitnesses. Sadly, the descriptions of the various witnesses of men seen with Ripper victims shortly before their bodies were discovered varied widely, so no useful likeness was produced.