hey mart,
The only label on the lamp is the red foil balloon label that says "Charleton" Made in Japan as seen in the picture I attached below. This picture is not of our lamp but from theglasshousenc.com and is the same as the one on the lamp. My wife has recently talked to the owner of that website who is the author of the book "The Charleton Line" and he has also not seen this lamp before but that is not uncommon for this line of lamps as they are very rare.