The ADLAKE NON-SWEATING [railroad signal] LAMP, #2 (of a pair)

SEE ALSO: https://www.collectorsweekly.com/stories/284062-the-adlake-non-sweating-railroad-signal

Pic #1 shows the nifty (flat glass) red and green filter mechanisms operated by the pair of the small levers on the outside of the lantern (pic #2) in this instance with the red one in place behind the clear outer fresnel lens. Also seen is (part of) the "chimney mechanism parts" attached to the inside of the lid. Pic #3 shows the 'hanging bracket' better, and pic #4 shows both lanterns side by side just for fun. :-)