Vintage Industrial Lonergan Philadelphia Steam Gauge
This is an untested gauge by Lonergan Philadelphia. Gauge has some cracking shown in photos with a 1000 max reading and is Untested.
According to my research this gauge appears to be c1930-1940s view pictures to confirm.
Dimensions are approximately 6.5" x 6.75" x 2"
Face of Gauge is 6"