\starttext

\placefigure
  [left]
  {none}
  {\bleed
     [width=5cm,
      height=3cm,
      location=lt]
     {\externalfigure[cow][bleed]}}

\input tufte

\placefigure
  [right]
  {none}
  {\bleed
     [width=5cm,
      height=3cm,
      location=rb]
     {\externalfigure[cow][bleed]}}

\input tufte

\stoptext

