機器
agricultural
agriculture
america
antique
blue
boiler
cable
california
carriage
cart
classic
countryside
creek
death
earth
engine
engines
england
equipment
farm
farming
field
fortyniner
furnace
furrow
hot
industrial
industry
machinery
metal
national
old
park
plough
ploughing
pressure
rusty
sky
smithsburg
steam
sun
traction
tractor
tractors
truck
usa
valley
vintage
wagon
wheel
wheels
work