Kraus, John; Official Gazette for Patents (US), 4 Oct 1921;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 72 2 4 6 810121416182022242628303234363840424446485052545658606264666870 | |
| P1 | 53.00° | 72 4 8121620242832364044485256606468 | |
| P2 | 48.00° | 72 4 8121620242832364044485256606468 | |
| P3 | 43.00° | 72 4 8121620242832364044485256606468 |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 42.76° | 721224364860 | |
| C2 | 40.43° | 4 816202832404452566468 | |
| C3 | 37.00° | 61830425466 | |
| C4 | 27.00° | 61830425466 | |
| T | 0.00° | 72 |