Here is my Super “O” D-264 layout from the 70’s. Unfortunately I only have a few photos of the layout from that timeframe. This was a fun filled layout with lots of train action and operating accessories. The mountain was constructed with wood supports, shape formed with old window screens than covered with old bedsheets. Landscape and ballast was from aquarium gravel and plantings that I had from previous hobby.
After a year or two I had added two additional tables to expand the rail empire.