I think this is simply called cuboctahedron though it is technically a cubohemioctahedrom. You can see diagrams here: https://www.origami-resource-center.com/business-card-cuboctahedron.html
I believe it was independently discovered by a number of origami/math enthusiasts. Diana ---------------------------------------------------------- http://www.origami-resource-center.com/ http://make-origami.com ----------------------------------------------------------
