Part of the
Atlas of Small Regular Polytopes
Polytopes of Type {4,21,2,2}
See
other polytopes
of rank 5
Polytopes of this Type
2 in this atlas
{4,21,2,2}*672
·SmallGroup(672,1263) · universal
{4,21,2,2}*1344
·SmallGroup(1344,11701) · universal