Raised on the Erie Lackawanna Mainline- Supt. of the Black River Transfer & Terminal R.R.
Jay
C-415 Build: https://imageshack.com/a/tShC/1
Other builds: https://imageshack.com/my/albums
You want to use the one shaped like a "Knuckle" coupler.
The "finger" portion snaps under the raised section of the Walther's turnouts throwbar.
It may take a minute or two of working it into place, but once it snaps in you will be set.
Mark Gosdin