This is an analysis of the Coxeter Sections for the Swirl Prism 120-Diminished Rectified 600-Cell. The source data, which can be found on either of two polychora sites (qfbox.info and polytope.miraheze.org) seems to have two missing vertices 598 as generated by their permutation lists (vs. the intended 600). The data below (with an added two vertices in the likely typo error sections #3 & #15) is shown in data and 3D convex hull and Coxeter sectioning forms.