A salvaged fixture survives, but not whole. It keeps its material, its workmanship, and its wear, and it loses something that doesn't come with it: the building it belonged to, the room it lit, the specific history of the place it was made for. Salvage saves the object and strips its setting, and that trade is worth understanding for what it costs as well as what it keeps.
In its building, a fixture was part of a whole, made or chosen for a particular room, connected to the design and the life of the house around it. Pulled free, it becomes a fine object without a setting, its specific story, whose house, which room, what it witnessed, mostly lost the moment it leaves, because that history usually isn't recorded and can't be recovered from the object. That's the honest limit of what a salvaged part can carry. It has a general history, its period, its type, its material and making, but rarely a specific one, and a dealer who claims to know the exact biography of most salvaged pieces is claiming more than the trade can support. But something real does survive: the fixture keeps the material, the workmanship, and the wear of its actual life, the marks of use it earned in whatever rooms it lit. That accumulated wear is genuine even when the specific history behind it is gone, and it's part of what a salvaged piece offers that a new one can't. The gain is a second life: separated from its first room, but recovered, restored, and put back into use.