Britains is one of the most popular, collectible toy manufacturers of farm machinery like trailers, model tractors, animal figures and buildings. Usually the toys are produced from diecast metal, the figures however (animals and people) and buildings are made from plastic.
Most Britains farm toys are made in scale 1/32, the 'Britains Big Farm' series is in the larger 1/16 scale.
Look here for other (vintage) Britains toys, soldiers and figures.
What's it worth? Take a look at this Britains Tractor price guide: sold listings for a value indication.