Top train,
Looking at your photos I see some fibre tie flex track. That takes me back a number of years. One of the biggest disasters I have ever had was doing some scenery work, and ballasting the fiber tie flex track. the fibre ties absorbed the water from the 50/50 white glue and water , expanded, and never contracted, leaving me with wide gauge track, and predictable results. don't ever get that stuff wet!! That was a painful lesson, learned some 48 years ago .
Thanks for sharing, love seeing the old stuff. A ways back I traded some of my Dad's On30 stuff for a bunch of old Mantua and AHM old time equipment, that I reworked for use on my logging RR. I'll try to figure out where the photos are and post some.
Bill Nelson , Clarksville TN.