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Five train order semaphore spectacle with 42" pointed blade assemblies, based on a type used by Southern Pacific. HO scale.
Cleaning the parts: Spray Simple Green household cleaner on one side of the part. Using an old toothbrush, gently scrub the surface of the part for about 30 seconds. Repeat for the other sides and edges. Once the part has been scrubbed, use dishwashing detergent and a brush under cool water to remove all traces of the Simple Green and waxy residue. Next, rinse the part in cool water. Finally, dry the part with a hair dryer on the cool setting, with compressed air, or just allow the part to air dry. The part is then ready for use.