This Jas P Marsh 4000 PSI Pressure Gauge was made in Chicago in the early 1900. The brass housing is 7 3/4 inches wide. Looks to have the original glass that measures 5 3/4 inches wide. The brass bezel freely screws on and off. The gauge dial is near perfect! The thickness of this gauge is just over 2  inches. The cast brass rear housing has three mount holes for mounting. Total weight is about 7 pounds.

The brass housing has some surface scratches.

You will be shipped the gauge shown in the attached photos of this listing.