I designed these for my NW5 body. These will fit any Emd switcher that needs full railings. They are designed to be be .278 inches from the walkway to the center of the railing. I copied the height from a P2K switcher. The vertical length of the stanchion along the frame is .060 with a .028 pin centered. The connection for the railing is not full circle and must be glued or soldered. There is no hole to core out. The ones spaced further apart are supposed to be for the ends.
These are the only brass stanchions I have been able to get Shapeways to print. These are hard to cut apart, trim and they bend easily. My sample in the photographs were supposed to be natural but the look polished to me.