Set of Train Linkage Salesman Samples by Major vintage illustration MM - 6417 - 113023

MM - 6417 - 113023

(likely) The Emil J

Antique japanned copper bulb socket manufactured by Federal Electric as evidenced by maker's mark

The Frantz brothers developed multiple companies with Kirby's inventions

by Forbes Foundry for California Bell Co

Set of Train Linkage Salesman Samples by Major vintage illustration MM - 6417 - 113023Pair of cast metal salesman's models showing the internal action and locking geometry of the Major automatic rail coupler. These small scale training pieces were built for shop floors, instructional classrooms, and yard offices allowing crews to visualize how knuckles, locks, and pivot points engaged before handling the full size equipment in the field. Each model is mounted to a steel base plate and retains working mechanical motion, clearly