VINTAGE" THE ROSS " #10 BRASS HOSE SPRINKLER SPRAY NOZZLE PAT. Dec. 9, 1924 This is The Ross #10 Sprinkler Spray Nozzle, Pat. Dec. 9, 1924 and is made of Brass. It is really clean and in great condition for it's age and being used. What a great piece for your collection or just to use. Check out my other items !