Found this lamp today on my fleamarket tour; as I discovered an engraved "TW" at the bottom and it cost 2,- Euro I bought it.
Looking in my Iittala book I found out that this design was originally a bottle (PN 2507), produced 1959-1966.
Do you think the brass fitting (which fits perfectly

is original and the lamp was distributed by Iittala? Or has somebody later converted the bottle to a lamp?
The shade that came with it looked 1960s style as well...
Thanks!
Michael