from BB 8830
(OS 4.5) to
9320 (OS 7.1).
far apart I'm
not sure which
Vintage Antique U.S. Gauge Co. N.Y. 4 1/2" Pressure Gauge 3661 with Redline For Sale
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Vintage Antique U.S. Gauge Co. N.Y. 4 1/2" Pressure Gauge 3661 with Redline : $6
US Gauge Co. N.Y 4 1/2AD-3661. Plate on the inside says "DST CONDENSER CIRC. PUMP DISCHARGE"Gauge reads from 0-50, unspecified units. The redline may move to show the highest value, but I'm not sure.Happy offerding!