It's 'stringer time' on the trestle. The two stringers across the top of the trestle will support the tracks. I've laid a section of track on the stringers just to illustrate that point. (Believe me that's not how the track will be put down!) And Roy is nailing stringers to the trestle uprights. Meanwhile in the carpentry shop, Bob has built cases for the two sets of controls.
Barb