\input a4
\input epsf
\nopagenumbers
\parindent0pt
\font\groot=pcrr at 30cm
\font\klein=pcrr at .2cm
\def\alph#1{\ifcase#1%
  A\or B\or C\or D\or E\or F\or G\or H\or I\or J\or K\or L\or M\or
  N\or O\or P\or Q\or R\or S\or T\or U\or V\or W\or X\or Y\or Z\else
  \errmessage{alfabet is op}\fi
}%
\newcount\letter
\letter0
\loop
  \vbox to \vsize{%
    \vbox to 0pt{\noindent\hfill\epsfbox{logo-color.eps}\vss}%
    \vbox{Speurtocht scienceklas 1 en 2 van het Oostvaarders College.\hfil\break
          Data: 22, 23 en 25 juni, tel: 036-5492492 (LAA,BUL,LUS,SNL)}%
    \vfill
    \centerline{\groot \alph{\letter}}
    \vfill
  }%
%  \vbox to \vsize{%
%    \vbox to 0pt{\noindent\hfill\epsfbox{logo-color.eps}\vss}%
%    \vbox{Speurtocht scienceklas 1 en 2 van het Oostvaarders College.\hfil\break
%          Data: 22, 23 en 25 juni, tel: 036-5492492 (LA,BUL,LUS,SNL)}%
%    \vfill
%    \centerline{\klein \alph{\letter}}
%    \vfill
%  }%
\ifnum\letter<25\advance\letter by 1\repeat
\bye
