6" Brass pressure gauge untested 0-200 lb ft. Has 3/8 BSP connection. Has a date of Dec 1973 stamped inside. Could be for Steam Boiler ?.
Brass Pressure Gauge 6" 0-200 lb ft
Railway Brass Pressure Gauge - S.R. (Southern Railway) - Good Clean Gauge
1920’s Vintage Ashton Valve Co. Air Gauge Air Pressure Gauge Steampunk Mass
Small Railway Gauge - District Railway - Air Pressure Gauge - Bevelled Glass