LARGE ANTIQUE GAUGE. The back of the unit is 6 1/2" in diameter. Made around 1900....marked 1900. A am assuming that it is a steam gauge but please use your best judgement. Looks to have a brass front and cast iron rear....brass may polish up very nice.
"THE KNAPP SUPPLY CO, UNION CITY IND."
"JAS. P. MARSH & CO. GAUGES AND VALVES, CHICAGO, 1900"
THE ONLY ONE LISTED OR THAT HAS RECENTLY SOLD WITH THESE MARKINGS!
Some signs of age on surface as it was made around 1900. The glass has no cracks or chips. The dial is still on the unit. Unable to test.
It will be protected well and insured.
Location C2, MER