| 1971-056A | Hexagon 1 |
| 1972-002A | Hexagon 2 |
| 1972-052A | Hexagon 3 |
| 1972-079A | Hexagon 4 |
| 1973-014A | Hexagon 5 |
| 1973-046A | Hexagon 6 |
| 1973-088A | Hexagon 7 |
| 1974-020A | Hexagon 8 |
| 1974-085A | Hexagon 9 |
| 1975-051A | Hexagon 10 |
| 1975-114A | Hexagon 11 |
| 1976-065A | Hexagon 12 |
| 1978-029A | Hexagon 14 |