Polytopes of Type {4,21,2,2}

This page is part of the Atlas of Small Regular Polytopes
(See Other Polytopes of Rank 5)

There are 2 polytopes of this type in this atlas. They are :
  1. {4,21,2,2}*672 (SmallGroup(672,1263)) (Universal)
  2. {4,21,2,2}*1344 (SmallGroup(1344,11701)) (Universal)