Polytopes of Type {21,4,4}

This page is part of the Atlas of Small Regular Polytopes
(See Other Polytopes of Rank 4)

There are 2 polytopes of this type in this atlas. They are :
  1. {21,4,4}*1344a (SmallGroup(1344,6453)) (Universal)
  2. {21,4,4}*1344b (SmallGroup(1344,11399)) (Universal)