Lesney range of die cast models.
The Models of Yesteryear, introduced in 1956, were renditions of classic vehicles from the steam and early automotive eras. These were often about 3½-4" in length. Accessories Packs were also introduced in 1956 and included petrol pumps, garages, and the like. Major Packs, which were larger-scale models, often of construction vehicles, were added in 1957. The King Size series of larger-scale trucks and tractors was added in 1960 and was diversified from 1967 onwards to include passenger car models in a scale similar to that used by Corgi and Dinky. Major Packs had been absorbed into the King Size range by 1968. [Wikipedia]