It's the dark little room across the way in the photo. If you were to drag a finger nail across the wood under the fixture you would get soot stuck under the nail.
Soot or dried linseed or tung oil? Finishes can do a lot of wierd things with heat.... That was my point...
Nope. I won't be back there again until next week. There're three 50W MR16s in it now. The fixture is probably custom made --unlisted, etc., etc-- There are three small electronic transformers above the canopy; there wasn't one of those little fiberglass heat barrier/shield thingies above the canopy when I took it down.
It's made all of brass and actually looks pretty good.
One would not assume it was an original fixture if it has electronic T's and MR-16s - (Asumming the Deco is period - not re-production?) but I too have come across some stupid Italian made BS much like what you describe and was so not fond of the open top design that I fab'ed a metal sheet to mount the fixture to. Not that ELV T's make much heat - I just did not like the idea of having an open fixture canopy with an area of 5' with a whole slue of connections and the unorthodoxed electrical concepts and tradions that get shipped from that nation.
Does your fixture capture and collect lamp heat? IMO - if you feel for the issue - it be worth investigating what type of heat the fixture produced of a short period of time - say a few hours mounted to a piece of plywood, and take an *IR thermometer and check various points. (To include a small hole that you feed the wire though - so to limit heat escape when covered by a small peice of tape, and provide someplace to take a heat reading when you remove the tape...) This may put you at ease - or help prove your point with less speculation.
*If you don't own an
IR thermometer I suggest getting one - it can make a very usefull diagnostic tool for a number of reasons... Finding loose neutrals - resistive splices and defective track parts....
At the very least - there is a fire extingisher handy.....