VERY RARE WESTINGHOUSE AIR BRAKE AIR / STEAM WHISTLE

Veryrare Westinghouse two chime air whistle. I have been collecting and restoring whistles for over 40 years and havenever seen one of these. It has the Westinghouse logo and pattern numbers on both rectangular whistles and the bowl. The material is cast iron and has the original paint no cracks or repairs. Both whistles have a large and small mouth (opening).

The small whistle is 2-1/4” X 4” with a chamber length of 3”

The large whistle is 2-1/4” X 7” with a chamber length of 6”

The inlet hex is stamped 1690; opposite side is also stamped same but hard to read

The inlet is 3/8 NPT

Questions: Larry