File:Popsci feb1941 fig2.jpg

Sectional clubs of live-steam model builders run locomotives on circular tracks like this one at the home of Kyler Testerman in Los Angeles, Calif. One such club has 56 members, 36 locomotives. From https://books.google.com/books?id=1SYDAAAAMBAJ&pg=PA59&lpg=PA59&dq=Kyle+Testerman+Los+Angeles+live+steam&source=bl&ots=18r-86DaZf&sig=jhk86XAN7oa6hjseh2yHLFvHg-U&hl=en&sa=X&ved=0ahUKEwid27G9oIzNAhUQ7mMKHQQWBo8Q6AEIIjAB#v=onepage&q=Kyle%20Testerman%20Los%20Angeles%20live%20steam&f=false