- collectionZA 0375 - THL Image Collection
- Série organiqueP - P Collection
- 5183 en plus...
- PièceP4314 - Saunderson 50 hp tractor.
- PièceP4315 - Saunderson 50 hp tractor.
- PièceP4316 - Circa 1915. Troops at Marshall tractor in World War One.
- PièceP4317 - Marshall tractor bogged down.
- PièceP4318 - Fowler tractor.
- PièceP4319 - Universal 'G' tractor.
- PièceP4320 - Tractor with load.
- PièceP4321 - Kuruman, 1915. Steam tractor with two wagons during World War One.
- PièceP4322 - Steam tractor on uneven ground.
- 189 en plus...
