/inch {36 mul} def
gsave
  0.2 inch setlinewidth
  4.25 inch 5.5 inch 3 inch 0 360 arc
  stroke
grestore                                                    % itt húzom meg a küls? körvonalat
4.25 inch 5.5 inch 2 inch 0 360 arc
2 inch setlinewidth
[0.1 inch 0.1 inch] 0 setdash                     % a vastag szaggatott körvonal kirajzolása
stroke
showpage