Steele, Norman W; BEMS Tumbler, Dec 1996;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 2 6101418222630343842465054586266707478 | |
| P1 | 42.00° | 2 6101418222630343842465054586266707478 | Cut to PCP |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 30.00° | 2141830344650626678 | Level girdle |
| C2 | 25.79° | 6102226384254587074 | Fix girdle width |
| C3 | 20.00° | 824405672 | Meet C1-C2-C2-C1 |
| C4 | 15.00° | 4122028364452606876 | Meet (C3-C1-C2-C2-C1-C3) |