Husky Toys, Corgi Juniors and Corgi Rockets page 1
Mettoy Playcraft, makers of Corgi Toys, introduced Husky models in 1964 as a smaller-scale range to compete with the Matchbox 1-75 series. Unlike Matchbox, all the Husky models were packaged in see-through blister packs which could not be used for storing models once opened. This means that mint models in original packaging are very rare and command premium prices. Husky models were sold exclusively by Woolworth stores, and production continued until 1969 when the range was relaunched as Corgi Juniors. In common with other brands, many of these were fitted with low-friction Whizz Wheels.
The Corgi Rockets range was introduced in 1970: as well as Whizz Wheels, these had removable plastic chassis and axle/wheel assemblies that could be swapped. The Golden Tune-Up Key supplied with each model was used to unclip the chassis from the vehicle. Rockets were designed to compete head-on with Mattel's Hot Wheels, and similar track components were available.
Production of Juniors and Rockets continued until 1972, Corgi Juniors reappearing in 1975.