Nice one Martin,
i expect you found this link,http://www.glassmessages.com/index.php/topic,22153.0.html
as Frank says, one day , a maker will be found, and of course then the value will go up.
They are quality pieces, and im always looking out for more.
Value, at a guess, at the moment £30-50, but in the right auction, and with a name, who knows??
Good investment piece
(Martin, i suppose its worth what you paid at the auction)
ps. They look great with the sunshine streaming through!
pps. I think Franks name of Cellophane glass,is great, and will probably catch on