Custom made fixtures from China
First let me say I aggree with Bryan.
Next -same question in effect-how would one deal with a fixture[or fixtures--such as a lovely sconce] purchased by a h/owner and her interior designer from the antique art store --said fixture was hanging from the cieling of the store supported by picture wire [ there was no other way to support it because it is not really a lighting fixture but a piece of art ].
I ask this because when I was a mechanic it was dealt with one way but since my reincarnation as an inspector I feel a certain guilt when recalling this situation.