Herbert Gruber
He won a silver medal in the four-man event at the 1968 Winter Olympics in Grenoble and finished eighth in the two-man event at the 1972 Winter Olympics in Sapporo . 
<triplet> 1968 Winter Olympics <subj> 1968 <obj> point in time <subj> 1972 Winter Olympics <obj> followed by <triplet> 1972 Winter Olympics <subj> 1968 Winter Olympics <obj> follows <subj> 1972 <obj> point in time