Adlake A&W RR Switch Stand Marker Lamp Great Northern GN No. 4 Marked Circa 1920 For Sale

ITEM: Offering a railroad switch stand marker lamp, made by Admas & Westlake (top marked Adlake - Chicago & on top side G.N. No. 4) indicating used by Great Northern R.R. This lamp design by Adlake for GN was unique, as switch lamp (fork tubes are running up internally within lamp body). It has 2-5\" green optical lenses & 2-red lenses with A&W marked font, and outside font burner adjuster, and total height is near 14 1/2\"...
CONDITION: Photos show the lamp is in very good condition, note inside view the rubber lens gaskets are dry/old & new owner may want to remove & replace them, otherwise lamp is ready for display by a GN R.R. collector...