Bidspirit auction | A Trio of Vintage Concentric

A Trio of Vintage Concentric Brass Passage Door Knob Components - A collection of three components identified in the market as elements of a Vintage Concentric Brass Passage Door Knob Set. These items are constructed from cast brass and bronze alloy. The collection includes one large component designed as a variable-stream or fog nozzle head, characterized by heavy surface texture, internal threading, and a top secured by a metal bolt/nut over a white synthetic insert. The remaining two items are smaller, tapered nozzle tips. The center tip features a hexagonal base and a brighter brass finish, while the third tip has a darker patina and a facetted octagonal base. No discernible manufacturer markings or identifying text are visible.