Hi Jack, the dolley set up was being used a long time ago, I think they might have used them on some of the steam powered mowers in the 19th century. This setup is far more refined and would not look out of place today, in fact it would probably be far more reliable and far more robust than the majority of ride on mowers being built today. One of the Deutscher self propelled slasher with a dolley , much cheaper than a ride on and far less problems. I have seen the dolley units for sale in the States but from memory they were about $800
