Caboose Industries
Caboose Industries began manufacturing injection molded Delrin switch stands in 1975.
Their ground throws feature an external cam for extended life and a positive lock on both ends of the throw. They come in sizes for scales from N to O.
The HO scale high level is fully operational and features a gear driven target so 180 degrees pf rotation of the handle turns the target 90 degrees. It locks into position using an over-center design.