I created all of the reliefs singly and then merged (highest) over a zero height relief. The two files on the right were cut as offsets.
There were four couplings in all… five pieces for each. Here’s one set mocked up to check the scale.
The pieces were cleaned up with the die grinder, I purposely roughed them up a little to age them. These couplings would have seen a lot of abuse through the years. Once the hand work was done I welded the protruding steel to the frame of the train.
Now it is ready to apply the rust paint. Stay tuned…