Ease the locating holes of the female coupling plate and countersink the top of the hole to make coupling the male plate easier.
Slope filed on the Base Plate at the sides and the leading edge to match the slope on the inside of the sole bar.
The coupling is cut off the bogie. A recess is cut to allow the draw bar to pass through and the corners rounded off to prevent the coupling pocket catching on the bogie.
Tabs removed from the leading edge of the base plate.
ng the male plate easier.
