3-foot Gauge Huckleberry Railroad #11
Narrow Gauge And Short Line Gazette 2008-11/12 pg. 47 Scale: Category: "Locomotives - Diesel"
In 1968-9 Plymouth built 35 Model HSG, 5-ton, torque converter locomotives for the U.S. Army ammunition plant in Baraboo, Wisconsin. This page shows scale drawings and one prototype photo.
Oahu Railway & Land Company 3-foot Gauge Plymouth Diesel #45
Narrow Gauge And Short Line Gazette 2008-09/10 pg. 53 Scale: Category: "Locomotives - Diesel"
Prototype photo and scale drawings with a brief description of this engine found on the Hawaiian Island of Oahu in 1947.
Ohio River & Western 3-foot Gauge Gondola #279
Narrow Gauge And Short Line Gazette 2007-01/02 pg. 59 Scale: (none) Category: "Freight Cars - Gondolas"
Scales drawings of this car.