These are all films with a John Deere tractor bias. There are others but these are a start. The Dustbin Films library contains many films on mechanical topics.
2 Power on the Land a good general look at mechanisation
8 Royal Show Lincoln early view of Ferguson and plough.
6 JD sales film from 1936 which is excellent for its period
59 US Film includes JD in experiment on tyres.
104 Building of JD Combines
251 Canadian film 1974 encouraging more people to come to Canada.
599 Claydon furrow cracker demonstration no commentary modern JD 4wd tractor
728 JD pulling balers in film on pigs.
957 History of Cat and JD mixed in early days
1016 Compilation 957 +3 other films
1356 May be 6 part only
1467 Compilation 59 + 3 other films
If in doubt ask a question before you order for a fair answer
Other items that could be of interest
Tractors of the 1950s Test report of an early example in each case Large choice. Farmer buying a new tractor used to rely on these for impartial information
Oil sample reveals much about any sort of engine. Test it BEFORE you buy it Provides vital information if you are buying a tractor of any age and nearly all models
Sectioned Line Drawing of vintage tractors, choice of makes, how they work. Shows what is going on under the casings out of sight.