Thanks for your reply, Dirk!
I would love to see your new (unusual) purchases, so if you find the time do post some pics, please.
From the 5 Ikora pieces I have seen during the last year, two had severe cracks, one was too expensive, and the remaining two are mine

Regarding my lamps: I saw yet another one of those slightly dubious Ikora lamps at the fleamarket last saturday, again with rounded brass fitting. They seem to be far more abundant in Austria than in Germany...
Michael