As a result of this discussion, I set about checking around for other hanging oil lamps. I already have a DHR Mini-Trawler, that you can still get, but it doesn't have a mantle, only a wick. It's wonderful light, but really not enough to read by. And I can't use a gimbaled wall mount variety because I just don't have the bulkhead space, so I need a hanging "trawler lamp" variety.
But the supply is pretty weak out there. Aladdin lamps seems to be failing almost entirely, and I can't find a mantle lantern of their's that's not on backorder. Weems & Plath carries the same DHR mini trawler wick lamp I already have, but nothing more. This entire discussion seems to me to be moot, unless you already own your lamps. Another victim of the times?