@Arnold D. Cribari- Track clips for sure. OBTW Arnold I love your "river" its great scenery. I also get a smile when I remeber your "Washing Machine" bridge! Great fun!
Here are some more Hoppers'....Stay Happy everyone!
Here is the Lionel Chessie System Hopper #9016 from 1975-79 and1987-88
The Lionel 6076 SF Hopper from 1963
A Karl Bub Hopper (or Gondola) from the 1950's
A French Hornby Hatchette NORD hopper from the 1990's (reproduction of French Hornby of the 1950's)
A Hornby M1 LMS gondola or "open Wagon" from the 1950's
A Hornby M1 LNE gondola from the 1950's
OK so on we go!! I am having fun, hope you are as well
Best Wishes
Don