I have a couple of these. The indoor model turns up now and then. I guess I know of perhaps half a dozen. The outdoor type is another matter and I only know of the one I have. I suspect this is because the outdoor one is mostly steel and very few have survived whereas the indor model is all brass which tends to preserve better in sheds and attics.
Two great old lamps again neil that indoor donut i saw at newark really small shollow tank compared to the tilley style ILs I like this reference style gallery forum the lamps dont get lost amid loads of posts on a general forum is same on ccs cheers pete