Which truck is it?

[WiriliBL]

I am looking at building some kit wagons and want the same trucks (here in Australia we call them bogies) as those on the On30 18' Low Side Gondolas. So my question is which is it - Arch Bar Freight Trucks or Low Frame 4'1" Arch Bar Freight Trucks or Vulcan Freight Trucks? Can anyone help?

[WiriliBL]

Mystery solved - It's the Low Frame 4'1" Arch Bar Freight Trucks.