Image Item No. Description  1787-1 (Inv)  Crater Cruiser 171 Parts, 2 Minifigures, 1995 Catalog: Sets: Space: Unitron  1789-1 (Inv)  Star Hawk II 281 Parts, 2 Minifigures, 1995 Catalog: Sets: Space: Unitron  1793-1 (Inv)  Space Station Zenon 328 Parts, 3 Minifigures, 1995 Catalog: Sets: Space: Unitron  6991-1 (Inv)  Monorail Transport Base 555 Parts, 4 Minifigures, 1994 Catalog: Sets: Space: Unitron