Thanks Jeff, this one is the second British pressure appliance that I've seen in about 20 years of collecting. The other was a Tilley KL80 which the owner had brought when immigrating to Canada.
That looks the same (but without the coloured glass shade) as my Tilley Pork Pie Table Lamp (circa 1950, my parent's). See here: Tilley Storm Lamp and Table Lamp Restored! I should put a good photo of it up in this forum.