21.083 FVS-19 Double Box; Van Sant, Fred W; Star Cuts I (1980) p19; L/W=1.000; H/W=0.697; Vol/W³=0.267; 64 index; 81+8 facets;
21.083A FVS-19 Double Box; Van Sant, Fred; Star Cuts I (1988); L/W=1.000; H/W=0.697; Vol/W³=0.267; 64 index; 81+8 facets;
21.084 FVS-20 Altair; Van Sant, Fred W; Star Cuts I (1980) p20; L/W=1.000; H/W=0.790; Vol/W³=0.303; 64 index; 89+8 facets;
21.084A FVS-20 Altair; Van Sant, Fred; Star Cuts I (1988); L/W=1.000; H/W=0.711; Vol/W³=0.269; 64 index; 89+8 facets;
21.085 Quadrifan (FVS-31); Van Sant, Fred W; Gems & Minerals, Aug 1983, p35; L/W=1.000; H/W=0.685; Vol/W³=0.228; 96 index; 65+8 facets;
21.085A Quadrifan Modification A; Van Sant, Fred W; Star Cuts I (1980) p31; L/W=1.000; H/W=0.680; Vol/W³=0.225; 96 index; 69+8 facets; Suggested but not diagrammed
21.085B Quadrifan Modification B; Van Sant, Fred W; Star Cuts I (1980) p31; L/W=1.000; H/W=0.683; Vol/W³=0.228; 64 index; 65+8 facets; Suggested but not diagrammed
21.085C FVS-31 Quadrifan; Van Sant, Fred; Star Cuts I (1988); L/W=1.000; H/W=0.631; Vol/W³=0.205; 96 index; 65+8 facets;
21.086E FVS-44 Octabar-X; Van Sant, Fred W; Star Cuts I (1980) p44; L/W=1.000; H/W=0.749; Vol/W³=0.283; 64 index; 77+8 facets;
21.086F FVS-44 Octabar-X; Van Sant, Fred; Star Cuts I (1988); L/W=1.000; H/W=0.722; Vol/W³=0.268; 64 index; 77+8 facets;
21.087 FVS-46 Jupiter; Van Sant, Fred W; Star Cuts I (1980) p46; L/W=1.000; H/W=0.678; Vol/W³=0.256; 64 index; 73+8 facets;
21.087A FVS-46 Jupiter; Van Sant, Fred; Star Cuts I (1988); L/W=1.000; H/W=0.678; Vol/W³=0.256; 64 index; 73+8 facets;
21.088 Thistle Blossom; Balaban, Iris A; The Faceter's Gem, Dec 1981, p17; L/W=1.000; H/W=0.670; Vol/W³=0.228; 64 index; 49+8 facets;