#1: Rare 1941 Grinnell upright head recently taken out of service. Unique link system. I cleaned most of the crud off, still has a real nice color, old brass patina. Great addition to your collection and display.
See my other heads, have many more not listed, Grinnell, Firematic (Worcester Mass), Reliable (RASCO), Star, some are rare, I will list them along with other fire sprinkler items. Hose valves, wrenches, gauges, small ball and globe valves, wall plates. Some items are newer, some are vintage, items date from 1920's thru present.Thanks for viewing. Message me for BEST OFFER.
P.S. I do have a second Grinnell 41 Duraspeed for sale, #2. "See Seller's Other Items."