Petty PloughFrom Wikipedia, the free encyclopedia The Petty Plough was a steerable plough developed by brothers Frank and Herbert Petty of Doncaster, Victoria, Australia in the early 1930s.Tractor Drawn Petty Plough - Daniel Harvey Ltd, Bulletin 218-DPetty Plough Film 1930s
The Petty Plough was a steerable plough developed by brothers Frank and Herbert Petty of Doncaster, Victoria, Australia in the early 1930s.Tractor Drawn Petty Plough - Daniel Harvey Ltd, Bulletin 218-DPetty Plough Film 1930s