You fellows are trying to age me. My current layout is postwar/MPC, uses mostly 1950s building techniques, was started in 1977, and it still going strong.
With New Wye added in 2020
Scratch built turntable and round house.
Details of how I built it are here on OGR forum
https://ogrforum.ogaugerr.com/...ra-027-layout?page=1
Charlie