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This is a set of SIX HO scale nose headlight clusters commonly used by Southern Pacific and seen on many modern locomotives with ex-SP lineage. Used for near end of SP era, when gyralights were welded over and beacons added to cab roofs. Prime PM Beacons are also available from my shop.
To install nose cluster, soak in Bestine for 1 hour to fully remove all wax support material. Cut hole into nose of locomotive adjust for a snug fit. Install either 1.8 mm (.070") fiber optics for a lighted cluster or MV lens (600-603) for a non-lighted installation.