Commemorative railroad pendant / brooch featuring duplex air brake pressure gauge.

This replica or non-functioning gauge measures the train line brake pipe pressure and the main reservoir pressure.

This dial measures approximately one inch in diameter.

Six commemorative bars measure approximately 1.5 in in length.

ARRABM

Association of railroad air brackman

This brooch commemorates the history of the invention of train air brakes, including a fraternal order or Union representing the brake men.

Pittsburgh 1893 air brakes invented by industrialist George Westinghouse. Also the railroad safety appliance act was written into law governing the use of air brakes on all interstate train travel in the United States..

Columbus 1894 with the first convention for the air brakeman

1895 St Louis second convention

Boston 1896 third convention

Nashville 1897 fourth convention

1898 Baltimore fifth convention

Please see pictures for accurate description..