1957 saw the introduction of new ranges amongst those were the ‘Major Packs’ the forerunner to the King Size range of models.
| Issue | Description | < click to enlarge > | Year Released |
| M1 | Caterpillar Earth Scraper |  |
1957 |
| M2-A | Bedford Articulated Truck |  |
1957 |
| M2-B | Bedford Tractor & York Freightmaster Trailer |  |
1961 |
| M3 | Tank Transporter |  |
1959 |
| M4-A | Ruston-Bucyrus Crane |  |
1959 |
| M4-B | Fruehauf Hopper Train |  |
1965 |
| M5 | Massey Ferguson 780 Combine Harvester |  |
1959 |
| M6 | Pickfords 200 Ton Transporter |  |
1960 |
| M7 | Jennings Cattle Truck |  |
1960 |
| M8-A | Mobilgas Petrol Tanker |  |
1960 |
| M8-B | Guy Warrior Car Transporter |  |
1964 |
| M9 | Inter-State Double-Freighter |  |
1962 |
| M10 | Dinkum Dumper |  |
1962 |