Westreich, Maurice J; Official Gazette for Patents (US), Mar 1966, p2000;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 2 610141822263034384246505458626670747882869094 | |
| P1 | 42.40° | 618304254667890 | |
| P2 | 41.50° | 2101422263438465058627074828694 | |
| P3 | 40.00° | 9612243648607284 |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 41.58° | 618304254667890 | |
| C2 | 39.29° | 2101422263438465058627074828694 | |
| C3 | 36.07° | 9612243648607284 | |
| C4 | 15.00° | 618304254667890 | |
| T | 0.00° | 96 |