The aluminium cast hand brake extension levers shown in Trevors photos were produced in Australia. They were quite common back in the day and fitted to many Fords. I think they were aftermarket and not sure who made them here. In the USA there were a number of these extensions produced in the 1930s by a few different companies and fitted Fords and other makes as well. Many had a Bakelite or marble type knob on the handle. I have one on my 34 Ford and it is very convenient to operate. Regards, Kevin.